./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-atomic/read_write_lock-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-atomic/read_write_lock-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 3e2f466b16db44ce2fec1aabf9e70b4ab734ef2801c32e66d10c5bcbcceb5301 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:34:09,447 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:34:09,504 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:34:09,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:34:09,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:34:09,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:34:09,535 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:34:09,536 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:34:09,536 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:34:09,536 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:34:09,536 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:34:09,536 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:34:09,536 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:34:09,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:34:09,536 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:34:09,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:34:09,536 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:34:09,536 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:34:09,536 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:34:09,537 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:34:09,537 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:34:09,537 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:34:09,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:34:09,538 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:34:09,538 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:34:09,538 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:34:09,538 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:34:09,538 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:34:09,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:34:09,538 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:34:09,538 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:34:09,538 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:34:09,538 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:34:09,538 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 -> 3e2f466b16db44ce2fec1aabf9e70b4ab734ef2801c32e66d10c5bcbcceb5301 [2025-01-10 06:34:09,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:34:09,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:34:09,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:34:09,815 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:34:09,815 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:34:09,817 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i [2025-01-10 06:34:10,909 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/44de0f31b/70a2c758d2874e4d804e7aec60407996/FLAGa58647ac8 [2025-01-10 06:34:11,186 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:34:11,187 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-2.i [2025-01-10 06:34:11,202 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/44de0f31b/70a2c758d2874e4d804e7aec60407996/FLAGa58647ac8 [2025-01-10 06:34:11,218 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/44de0f31b/70a2c758d2874e4d804e7aec60407996 [2025-01-10 06:34:11,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:34:11,221 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:34:11,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:34:11,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:34:11,226 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:34:11,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:34:11" (1/1) ... [2025-01-10 06:34:11,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1035e8e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:11, skipping insertion in model container [2025-01-10 06:34:11,228 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:34:11" (1/1) ... [2025-01-10 06:34:11,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:34:11,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:34:11,529 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:34:11,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:34:11,605 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:34:11,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:11 WrapperNode [2025-01-10 06:34:11,606 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:34:11,607 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:34:11,607 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:34:11,607 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:34:11,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:11" (1/1) ... [2025-01-10 06:34:11,624 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:11" (1/1) ... [2025-01-10 06:34:11,639 INFO L138 Inliner]: procedures = 172, calls = 31, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 100 [2025-01-10 06:34:11,640 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:34:11,640 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:34:11,640 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:34:11,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:34:11,646 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:11" (1/1) ... [2025-01-10 06:34:11,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:11" (1/1) ... [2025-01-10 06:34:11,649 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:11" (1/1) ... [2025-01-10 06:34:11,665 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 06:34:11,665 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:11" (1/1) ... [2025-01-10 06:34:11,666 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:11" (1/1) ... [2025-01-10 06:34:11,673 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:11" (1/1) ... [2025-01-10 06:34:11,673 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:11" (1/1) ... [2025-01-10 06:34:11,675 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:11" (1/1) ... [2025-01-10 06:34:11,679 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:11" (1/1) ... [2025-01-10 06:34:11,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:11" (1/1) ... [2025-01-10 06:34:11,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:34:11,681 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:34:11,681 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:34:11,681 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:34:11,682 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:11" (1/1) ... [2025-01-10 06:34:11,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:34:11,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:34:11,710 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 06:34:11,713 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 06:34:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-10 06:34:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:34:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2025-01-10 06:34:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2025-01-10 06:34:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:34:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-10 06:34:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:34:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:34:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2025-01-10 06:34:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2025-01-10 06:34:11,732 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 06:34:11,822 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:34:11,823 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:34:11,940 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:34:11,940 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:34:12,045 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:34:12,045 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:34:12,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:34:12 BoogieIcfgContainer [2025-01-10 06:34:12,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:34:12,047 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:34:12,047 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:34:12,050 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:34:12,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:34:11" (1/3) ... [2025-01-10 06:34:12,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa9e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:34:12, skipping insertion in model container [2025-01-10 06:34:12,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:11" (2/3) ... [2025-01-10 06:34:12,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa9e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:34:12, skipping insertion in model container [2025-01-10 06:34:12,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:34:12" (3/3) ... [2025-01-10 06:34:12,052 INFO L128 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2025-01-10 06:34:12,061 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:34:12,062 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG read_write_lock-2.i that has 3 procedures, 36 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-01-10 06:34:12,062 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:34:12,115 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-01-10 06:34:12,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 56 transitions, 140 flow [2025-01-10 06:34:12,164 INFO L124 PetriNetUnfolderBase]: 0/52 cut-off events. [2025-01-10 06:34:12,165 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-01-10 06:34:12,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 52 events. 0/52 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 119 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-01-10 06:34:12,168 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 56 transitions, 140 flow [2025-01-10 06:34:12,170 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 50 transitions, 121 flow [2025-01-10 06:34:12,174 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:34:12,181 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;@2895fd25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:34:12,181 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2025-01-10 06:34:12,186 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:34:12,186 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2025-01-10 06:34:12,186 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:34:12,186 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:12,187 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-10 06:34:12,187 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-01-10 06:34:12,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:12,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1123476844, now seen corresponding path program 1 times [2025-01-10 06:34:12,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:12,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549325055] [2025-01-10 06:34:12,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:12,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:12,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:34:12,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:34:12,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:12,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:12,367 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 06:34:12,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:12,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549325055] [2025-01-10 06:34:12,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549325055] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:12,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:12,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:34:12,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558502269] [2025-01-10 06:34:12,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:12,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:34:12,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:12,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:34:12,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:34:12,399 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 56 [2025-01-10 06:34:12,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 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 06:34:12,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:12,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 56 [2025-01-10 06:34:12,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:13,735 INFO L124 PetriNetUnfolderBase]: 10434/17352 cut-off events. [2025-01-10 06:34:13,736 INFO L125 PetriNetUnfolderBase]: For 1909/1909 co-relation queries the response was YES. [2025-01-10 06:34:13,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33621 conditions, 17352 events. 10434/17352 cut-off events. For 1909/1909 co-relation queries the response was YES. Maximal size of possible extension queue 1000. Compared 139881 event pairs, 4015 based on Foata normal form. 0/15308 useless extension candidates. Maximal degree in co-relation 28381. Up to 7899 conditions per place. [2025-01-10 06:34:13,859 INFO L140 encePairwiseOnDemand]: 41/56 looper letters, 53 selfloop transitions, 7 changer transitions 0/74 dead transitions. [2025-01-10 06:34:13,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 74 transitions, 304 flow [2025-01-10 06:34:13,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:34:13,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:34:13,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 122 transitions. [2025-01-10 06:34:13,871 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7261904761904762 [2025-01-10 06:34:13,872 INFO L175 Difference]: Start difference. First operand has 63 places, 50 transitions, 121 flow. Second operand 3 states and 122 transitions. [2025-01-10 06:34:13,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 74 transitions, 304 flow [2025-01-10 06:34:13,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 74 transitions, 282 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-01-10 06:34:13,900 INFO L231 Difference]: Finished difference. Result has 60 places, 56 transitions, 176 flow [2025-01-10 06:34:13,902 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2025-01-10 06:34:13,904 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, -3 predicate places. [2025-01-10 06:34:13,904 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 56 transitions, 176 flow [2025-01-10 06:34:13,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 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 06:34:13,905 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:13,905 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:13,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:34:13,905 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-01-10 06:34:13,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:13,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1117780712, now seen corresponding path program 1 times [2025-01-10 06:34:13,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:13,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743773886] [2025-01-10 06:34:13,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:13,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:13,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:34:13,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:34:13,924 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:13,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:14,009 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 06:34:14,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:14,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743773886] [2025-01-10 06:34:14,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743773886] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:14,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:14,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:34:14,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397863820] [2025-01-10 06:34:14,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:14,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:34:14,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:14,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:34:14,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:34:14,017 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 56 [2025-01-10 06:34:14,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 06:34:14,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:14,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 56 [2025-01-10 06:34:14,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:14,789 INFO L124 PetriNetUnfolderBase]: 6460/11290 cut-off events. [2025-01-10 06:34:14,790 INFO L125 PetriNetUnfolderBase]: For 3937/3946 co-relation queries the response was YES. [2025-01-10 06:34:14,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25014 conditions, 11290 events. 6460/11290 cut-off events. For 3937/3946 co-relation queries the response was YES. Maximal size of possible extension queue 585. Compared 89847 event pairs, 1613 based on Foata normal form. 799/11454 useless extension candidates. Maximal degree in co-relation 5371. Up to 3925 conditions per place. [2025-01-10 06:34:14,822 INFO L140 encePairwiseOnDemand]: 41/56 looper letters, 65 selfloop transitions, 11 changer transitions 10/100 dead transitions. [2025-01-10 06:34:14,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 100 transitions, 464 flow [2025-01-10 06:34:14,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:34:14,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:34:14,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 164 transitions. [2025-01-10 06:34:14,824 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7321428571428571 [2025-01-10 06:34:14,824 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 176 flow. Second operand 4 states and 164 transitions. [2025-01-10 06:34:14,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 100 transitions, 464 flow [2025-01-10 06:34:14,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 100 transitions, 450 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:34:14,835 INFO L231 Difference]: Finished difference. Result has 63 places, 58 transitions, 225 flow [2025-01-10 06:34:14,835 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=225, PETRI_PLACES=63, PETRI_TRANSITIONS=58} [2025-01-10 06:34:14,835 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 0 predicate places. [2025-01-10 06:34:14,835 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 58 transitions, 225 flow [2025-01-10 06:34:14,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 06:34:14,836 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:14,836 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:14,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:34:14,836 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-01-10 06:34:14,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:14,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1117780711, now seen corresponding path program 1 times [2025-01-10 06:34:14,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:14,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519300033] [2025-01-10 06:34:14,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:14,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:14,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:34:14,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:34:14,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:14,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:14,908 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 06:34:14,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:14,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519300033] [2025-01-10 06:34:14,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519300033] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:14,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:14,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:34:14,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133832120] [2025-01-10 06:34:14,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:14,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:34:14,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:14,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:34:14,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:34:14,917 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 56 [2025-01-10 06:34:14,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 58 transitions, 225 flow. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 06:34:14,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:14,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 56 [2025-01-10 06:34:14,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:15,489 INFO L124 PetriNetUnfolderBase]: 5319/9645 cut-off events. [2025-01-10 06:34:15,489 INFO L125 PetriNetUnfolderBase]: For 4958/4961 co-relation queries the response was YES. [2025-01-10 06:34:15,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22674 conditions, 9645 events. 5319/9645 cut-off events. For 4958/4961 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 77781 event pairs, 1334 based on Foata normal form. 317/9814 useless extension candidates. Maximal degree in co-relation 4922. Up to 3377 conditions per place. [2025-01-10 06:34:15,533 INFO L140 encePairwiseOnDemand]: 41/56 looper letters, 65 selfloop transitions, 15 changer transitions 4/98 dead transitions. [2025-01-10 06:34:15,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 98 transitions, 503 flow [2025-01-10 06:34:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:34:15,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:34:15,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 158 transitions. [2025-01-10 06:34:15,535 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7053571428571429 [2025-01-10 06:34:15,535 INFO L175 Difference]: Start difference. First operand has 63 places, 58 transitions, 225 flow. Second operand 4 states and 158 transitions. [2025-01-10 06:34:15,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 98 transitions, 503 flow [2025-01-10 06:34:15,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 98 transitions, 496 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:34:15,543 INFO L231 Difference]: Finished difference. Result has 66 places, 62 transitions, 298 flow [2025-01-10 06:34:15,543 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=298, PETRI_PLACES=66, PETRI_TRANSITIONS=62} [2025-01-10 06:34:15,543 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 3 predicate places. [2025-01-10 06:34:15,543 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 62 transitions, 298 flow [2025-01-10 06:34:15,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 06:34:15,544 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:15,544 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:15,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:34:15,544 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-01-10 06:34:15,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:15,545 INFO L85 PathProgramCache]: Analyzing trace with hash -608811136, now seen corresponding path program 1 times [2025-01-10 06:34:15,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:15,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10854110] [2025-01-10 06:34:15,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:15,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:15,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-10 06:34:15,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-10 06:34:15,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:15,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:15,593 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 06:34:15,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:15,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10854110] [2025-01-10 06:34:15,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10854110] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:15,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:15,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:34:15,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151637023] [2025-01-10 06:34:15,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:15,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:34:15,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:15,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:34:15,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:34:15,596 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 56 [2025-01-10 06:34:15,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 62 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 06:34:15,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:15,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 56 [2025-01-10 06:34:15,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:16,217 INFO L124 PetriNetUnfolderBase]: 5389/9686 cut-off events. [2025-01-10 06:34:16,217 INFO L125 PetriNetUnfolderBase]: For 9389/9392 co-relation queries the response was YES. [2025-01-10 06:34:16,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24131 conditions, 9686 events. 5389/9686 cut-off events. For 9389/9392 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 77273 event pairs, 2960 based on Foata normal form. 214/9700 useless extension candidates. Maximal degree in co-relation 5162. Up to 6046 conditions per place. [2025-01-10 06:34:16,250 INFO L140 encePairwiseOnDemand]: 43/56 looper letters, 51 selfloop transitions, 11 changer transitions 6/82 dead transitions. [2025-01-10 06:34:16,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 82 transitions, 494 flow [2025-01-10 06:34:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:34:16,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:34:16,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2025-01-10 06:34:16,252 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2025-01-10 06:34:16,252 INFO L175 Difference]: Start difference. First operand has 66 places, 62 transitions, 298 flow. Second operand 3 states and 116 transitions. [2025-01-10 06:34:16,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 82 transitions, 494 flow [2025-01-10 06:34:16,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 82 transitions, 462 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-01-10 06:34:16,260 INFO L231 Difference]: Finished difference. Result has 68 places, 60 transitions, 312 flow [2025-01-10 06:34:16,260 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=68, PETRI_TRANSITIONS=60} [2025-01-10 06:34:16,261 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 5 predicate places. [2025-01-10 06:34:16,261 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 60 transitions, 312 flow [2025-01-10 06:34:16,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 06:34:16,262 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:16,262 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:16,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:34:16,262 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-01-10 06:34:16,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:16,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1661699421, now seen corresponding path program 1 times [2025-01-10 06:34:16,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:16,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759980074] [2025-01-10 06:34:16,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:16,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:16,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 06:34:16,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 06:34:16,282 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:16,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:16,363 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 06:34:16,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:16,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759980074] [2025-01-10 06:34:16,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759980074] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:16,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:16,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:34:16,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924895242] [2025-01-10 06:34:16,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:16,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:34:16,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:16,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:34:16,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:34:16,372 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 56 [2025-01-10 06:34:16,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 60 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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 06:34:16,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:16,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 56 [2025-01-10 06:34:16,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:16,818 INFO L124 PetriNetUnfolderBase]: 4286/7907 cut-off events. [2025-01-10 06:34:16,818 INFO L125 PetriNetUnfolderBase]: For 9884/9887 co-relation queries the response was YES. [2025-01-10 06:34:16,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20046 conditions, 7907 events. 4286/7907 cut-off events. For 9884/9887 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 62512 event pairs, 772 based on Foata normal form. 95/7883 useless extension candidates. Maximal degree in co-relation 6223. Up to 2687 conditions per place. [2025-01-10 06:34:16,862 INFO L140 encePairwiseOnDemand]: 43/56 looper letters, 103 selfloop transitions, 20 changer transitions 5/141 dead transitions. [2025-01-10 06:34:16,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 141 transitions, 801 flow [2025-01-10 06:34:16,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 06:34:16,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-10 06:34:16,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 282 transitions. [2025-01-10 06:34:16,863 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5595238095238095 [2025-01-10 06:34:16,864 INFO L175 Difference]: Start difference. First operand has 68 places, 60 transitions, 312 flow. Second operand 9 states and 282 transitions. [2025-01-10 06:34:16,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 141 transitions, 801 flow [2025-01-10 06:34:16,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 141 transitions, 761 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-01-10 06:34:16,884 INFO L231 Difference]: Finished difference. Result has 77 places, 65 transitions, 386 flow [2025-01-10 06:34:16,884 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=386, PETRI_PLACES=77, PETRI_TRANSITIONS=65} [2025-01-10 06:34:16,884 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 14 predicate places. [2025-01-10 06:34:16,885 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 65 transitions, 386 flow [2025-01-10 06:34:16,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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 06:34:16,885 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:16,885 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:16,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 06:34:16,885 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-01-10 06:34:16,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:16,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1693254602, now seen corresponding path program 1 times [2025-01-10 06:34:16,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:16,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391877268] [2025-01-10 06:34:16,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:16,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:16,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 06:34:16,896 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 06:34:16,896 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:16,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:16,949 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 06:34:16,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:16,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391877268] [2025-01-10 06:34:16,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391877268] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:16,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:16,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:34:16,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124904358] [2025-01-10 06:34:16,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:16,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:34:16,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:16,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:34:16,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:34:16,959 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 56 [2025-01-10 06:34:16,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 65 transitions, 386 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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 06:34:16,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:16,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 56 [2025-01-10 06:34:16,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:17,405 INFO L124 PetriNetUnfolderBase]: 3813/7102 cut-off events. [2025-01-10 06:34:17,406 INFO L125 PetriNetUnfolderBase]: For 10247/10250 co-relation queries the response was YES. [2025-01-10 06:34:17,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18068 conditions, 7102 events. 3813/7102 cut-off events. For 10247/10250 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 56120 event pairs, 582 based on Foata normal form. 187/7193 useless extension candidates. Maximal degree in co-relation 14712. Up to 1693 conditions per place. [2025-01-10 06:34:17,438 INFO L140 encePairwiseOnDemand]: 43/56 looper letters, 61 selfloop transitions, 12 changer transitions 24/110 dead transitions. [2025-01-10 06:34:17,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 110 transitions, 635 flow [2025-01-10 06:34:17,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 06:34:17,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-10 06:34:17,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 214 transitions. [2025-01-10 06:34:17,440 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5459183673469388 [2025-01-10 06:34:17,440 INFO L175 Difference]: Start difference. First operand has 77 places, 65 transitions, 386 flow. Second operand 7 states and 214 transitions. [2025-01-10 06:34:17,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 110 transitions, 635 flow [2025-01-10 06:34:17,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 110 transitions, 604 flow, removed 5 selfloop flow, removed 3 redundant places. [2025-01-10 06:34:17,468 INFO L231 Difference]: Finished difference. Result has 77 places, 54 transitions, 263 flow [2025-01-10 06:34:17,468 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=263, PETRI_PLACES=77, PETRI_TRANSITIONS=54} [2025-01-10 06:34:17,469 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 14 predicate places. [2025-01-10 06:34:17,469 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 54 transitions, 263 flow [2025-01-10 06:34:17,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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 06:34:17,469 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:17,469 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:17,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 06:34:17,469 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-01-10 06:34:17,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:17,470 INFO L85 PathProgramCache]: Analyzing trace with hash -742554811, now seen corresponding path program 1 times [2025-01-10 06:34:17,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:17,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014725070] [2025-01-10 06:34:17,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:17,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:17,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 06:34:17,481 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 06:34:17,481 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:17,481 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:17,543 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 06:34:17,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:17,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014725070] [2025-01-10 06:34:17,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014725070] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:17,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:17,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:34:17,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938790535] [2025-01-10 06:34:17,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:17,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:34:17,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:17,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:34:17,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:34:17,551 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 56 [2025-01-10 06:34:17,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 54 transitions, 263 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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 06:34:17,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:17,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 56 [2025-01-10 06:34:17,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:17,875 INFO L124 PetriNetUnfolderBase]: 2906/5447 cut-off events. [2025-01-10 06:34:17,875 INFO L125 PetriNetUnfolderBase]: For 6827/6830 co-relation queries the response was YES. [2025-01-10 06:34:17,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14054 conditions, 5447 events. 2906/5447 cut-off events. For 6827/6830 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 40992 event pairs, 583 based on Foata normal form. 87/5425 useless extension candidates. Maximal degree in co-relation 13614. Up to 1750 conditions per place. [2025-01-10 06:34:17,902 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 79 selfloop transitions, 16 changer transitions 5/113 dead transitions. [2025-01-10 06:34:17,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 113 transitions, 643 flow [2025-01-10 06:34:17,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 06:34:17,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-10 06:34:17,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 255 transitions. [2025-01-10 06:34:17,903 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5059523809523809 [2025-01-10 06:34:17,903 INFO L175 Difference]: Start difference. First operand has 77 places, 54 transitions, 263 flow. Second operand 9 states and 255 transitions. [2025-01-10 06:34:17,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 113 transitions, 643 flow [2025-01-10 06:34:17,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 113 transitions, 573 flow, removed 8 selfloop flow, removed 8 redundant places. [2025-01-10 06:34:17,920 INFO L231 Difference]: Finished difference. Result has 76 places, 59 transitions, 299 flow [2025-01-10 06:34:17,920 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=299, PETRI_PLACES=76, PETRI_TRANSITIONS=59} [2025-01-10 06:34:17,920 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 13 predicate places. [2025-01-10 06:34:17,920 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 59 transitions, 299 flow [2025-01-10 06:34:17,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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 06:34:17,920 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:17,920 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:17,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 06:34:17,921 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-01-10 06:34:17,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:17,921 INFO L85 PathProgramCache]: Analyzing trace with hash -742554812, now seen corresponding path program 1 times [2025-01-10 06:34:17,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:17,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545201937] [2025-01-10 06:34:17,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:17,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:17,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 06:34:17,934 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 06:34:17,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:17,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:18,000 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 06:34:18,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:18,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545201937] [2025-01-10 06:34:18,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545201937] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:18,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:18,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:34:18,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213630725] [2025-01-10 06:34:18,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:18,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:34:18,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:18,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:34:18,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:34:18,011 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 56 [2025-01-10 06:34:18,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 59 transitions, 299 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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 06:34:18,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:18,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 56 [2025-01-10 06:34:18,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:18,319 INFO L124 PetriNetUnfolderBase]: 2462/4705 cut-off events. [2025-01-10 06:34:18,319 INFO L125 PetriNetUnfolderBase]: For 5980/5983 co-relation queries the response was YES. [2025-01-10 06:34:18,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11361 conditions, 4705 events. 2462/4705 cut-off events. For 5980/5983 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 35489 event pairs, 367 based on Foata normal form. 171/4769 useless extension candidates. Maximal degree in co-relation 8909. Up to 1393 conditions per place. [2025-01-10 06:34:18,338 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 55 selfloop transitions, 8 changer transitions 17/93 dead transitions. [2025-01-10 06:34:18,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 93 transitions, 486 flow [2025-01-10 06:34:18,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 06:34:18,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-10 06:34:18,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 199 transitions. [2025-01-10 06:34:18,339 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5076530612244898 [2025-01-10 06:34:18,340 INFO L175 Difference]: Start difference. First operand has 76 places, 59 transitions, 299 flow. Second operand 7 states and 199 transitions. [2025-01-10 06:34:18,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 93 transitions, 486 flow [2025-01-10 06:34:18,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 93 transitions, 461 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-01-10 06:34:18,356 INFO L231 Difference]: Finished difference. Result has 72 places, 46 transitions, 171 flow [2025-01-10 06:34:18,356 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=171, PETRI_PLACES=72, PETRI_TRANSITIONS=46} [2025-01-10 06:34:18,356 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 9 predicate places. [2025-01-10 06:34:18,356 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 46 transitions, 171 flow [2025-01-10 06:34:18,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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 06:34:18,356 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:18,357 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:18,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 06:34:18,357 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-01-10 06:34:18,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:18,357 INFO L85 PathProgramCache]: Analyzing trace with hash 272006172, now seen corresponding path program 1 times [2025-01-10 06:34:18,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:18,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417529769] [2025-01-10 06:34:18,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:18,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:18,364 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 06:34:18,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 06:34:18,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:18,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:18,434 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 06:34:18,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:18,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417529769] [2025-01-10 06:34:18,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417529769] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:18,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:18,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:34:18,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134807531] [2025-01-10 06:34:18,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:18,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:34:18,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:18,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:34:18,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:34:18,441 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 56 [2025-01-10 06:34:18,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 46 transitions, 171 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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 06:34:18,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:18,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 56 [2025-01-10 06:34:18,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:18,635 INFO L124 PetriNetUnfolderBase]: 1669/3241 cut-off events. [2025-01-10 06:34:18,635 INFO L125 PetriNetUnfolderBase]: For 2771/2774 co-relation queries the response was YES. [2025-01-10 06:34:18,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7634 conditions, 3241 events. 1669/3241 cut-off events. For 2771/2774 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 23566 event pairs, 258 based on Foata normal form. 49/3243 useless extension candidates. Maximal degree in co-relation 7230. Up to 751 conditions per place. [2025-01-10 06:34:18,647 INFO L140 encePairwiseOnDemand]: 49/56 looper letters, 44 selfloop transitions, 6 changer transitions 16/79 dead transitions. [2025-01-10 06:34:18,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 79 transitions, 378 flow [2025-01-10 06:34:18,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 06:34:18,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-10 06:34:18,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 186 transitions. [2025-01-10 06:34:18,649 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4744897959183674 [2025-01-10 06:34:18,649 INFO L175 Difference]: Start difference. First operand has 72 places, 46 transitions, 171 flow. Second operand 7 states and 186 transitions. [2025-01-10 06:34:18,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 79 transitions, 378 flow [2025-01-10 06:34:18,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 79 transitions, 344 flow, removed 4 selfloop flow, removed 10 redundant places. [2025-01-10 06:34:18,657 INFO L231 Difference]: Finished difference. Result has 63 places, 40 transitions, 128 flow [2025-01-10 06:34:18,657 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=57, 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=7, PETRI_FLOW=128, PETRI_PLACES=63, PETRI_TRANSITIONS=40} [2025-01-10 06:34:18,658 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 0 predicate places. [2025-01-10 06:34:18,658 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 40 transitions, 128 flow [2025-01-10 06:34:18,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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 06:34:18,658 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:18,658 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:18,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-10 06:34:18,659 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-01-10 06:34:18,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:18,659 INFO L85 PathProgramCache]: Analyzing trace with hash 271992298, now seen corresponding path program 1 times [2025-01-10 06:34:18,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:18,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734142619] [2025-01-10 06:34:18,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:18,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:18,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 06:34:18,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 06:34:18,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:18,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:18,723 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 06:34:18,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:18,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734142619] [2025-01-10 06:34:18,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734142619] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:18,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:18,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:34:18,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361735870] [2025-01-10 06:34:18,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:18,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:34:18,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:18,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:34:18,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:34:18,730 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 56 [2025-01-10 06:34:18,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 40 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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 06:34:18,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:18,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 56 [2025-01-10 06:34:18,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:18,869 INFO L124 PetriNetUnfolderBase]: 1157/2343 cut-off events. [2025-01-10 06:34:18,870 INFO L125 PetriNetUnfolderBase]: For 1346/1349 co-relation queries the response was YES. [2025-01-10 06:34:18,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5199 conditions, 2343 events. 1157/2343 cut-off events. For 1346/1349 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 16799 event pairs, 237 based on Foata normal form. 45/2344 useless extension candidates. Maximal degree in co-relation 1349. Up to 689 conditions per place. [2025-01-10 06:34:18,875 INFO L140 encePairwiseOnDemand]: 50/56 looper letters, 0 selfloop transitions, 0 changer transitions 66/66 dead transitions. [2025-01-10 06:34:18,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 66 transitions, 291 flow [2025-01-10 06:34:18,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 06:34:18,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-10 06:34:18,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 173 transitions. [2025-01-10 06:34:18,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4413265306122449 [2025-01-10 06:34:18,876 INFO L175 Difference]: Start difference. First operand has 63 places, 40 transitions, 128 flow. Second operand 7 states and 173 transitions. [2025-01-10 06:34:18,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 66 transitions, 291 flow [2025-01-10 06:34:18,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 66 transitions, 269 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-01-10 06:34:18,878 INFO L231 Difference]: Finished difference. Result has 53 places, 0 transitions, 0 flow [2025-01-10 06:34:18,878 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=53, PETRI_TRANSITIONS=0} [2025-01-10 06:34:18,879 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, -10 predicate places. [2025-01-10 06:34:18,880 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 0 transitions, 0 flow [2025-01-10 06:34:18,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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 06:34:18,883 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2025-01-10 06:34:18,883 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2025-01-10 06:34:18,883 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2025-01-10 06:34:18,883 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2025-01-10 06:34:18,883 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 16 remaining) [2025-01-10 06:34:18,883 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 16 remaining) [2025-01-10 06:34:18,884 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 16 remaining) [2025-01-10 06:34:18,884 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2025-01-10 06:34:18,884 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2025-01-10 06:34:18,884 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2025-01-10 06:34:18,884 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2025-01-10 06:34:18,884 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2025-01-10 06:34:18,884 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2025-01-10 06:34:18,884 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2025-01-10 06:34:18,884 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2025-01-10 06:34:18,884 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2025-01-10 06:34:18,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-10 06:34:18,884 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:18,888 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 06:34:18,888 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 06:34:18,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:34:18 BasicIcfg [2025-01-10 06:34:18,893 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 06:34:18,894 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 06:34:18,894 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 06:34:18,894 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 06:34:18,895 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:34:12" (3/4) ... [2025-01-10 06:34:18,896 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 06:34:18,897 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2025-01-10 06:34:18,898 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2025-01-10 06:34:18,900 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2025-01-10 06:34:18,900 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-01-10 06:34:18,900 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-10 06:34:18,900 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-01-10 06:34:18,954 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 06:34:18,955 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 06:34:18,955 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 06:34:18,955 INFO L158 Benchmark]: Toolchain (without parser) took 7733.86ms. Allocated memory was 167.8MB in the beginning and 763.4MB in the end (delta: 595.6MB). Free memory was 129.6MB in the beginning and 239.3MB in the end (delta: -109.7MB). Peak memory consumption was 486.2MB. Max. memory is 16.1GB. [2025-01-10 06:34:18,955 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:34:18,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.18ms. Allocated memory is still 167.8MB. Free memory was 129.6MB in the beginning and 110.1MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 06:34:18,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.78ms. Allocated memory is still 167.8MB. Free memory was 110.1MB in the beginning and 108.5MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:34:18,956 INFO L158 Benchmark]: Boogie Preprocessor took 40.76ms. Allocated memory is still 167.8MB. Free memory was 108.5MB in the beginning and 106.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:34:18,956 INFO L158 Benchmark]: RCFGBuilder took 364.34ms. Allocated memory is still 167.8MB. Free memory was 106.7MB in the beginning and 85.0MB in the end (delta: 21.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 06:34:18,956 INFO L158 Benchmark]: TraceAbstraction took 6846.51ms. Allocated memory was 167.8MB in the beginning and 763.4MB in the end (delta: 595.6MB). Free memory was 84.6MB in the beginning and 247.7MB in the end (delta: -163.1MB). Peak memory consumption was 435.9MB. Max. memory is 16.1GB. [2025-01-10 06:34:18,956 INFO L158 Benchmark]: Witness Printer took 60.88ms. Allocated memory is still 763.4MB. Free memory was 247.7MB in the beginning and 239.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:34:18,957 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.18ms. Allocated memory is still 167.8MB. Free memory was 129.6MB in the beginning and 110.1MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.78ms. Allocated memory is still 167.8MB. Free memory was 110.1MB in the beginning and 108.5MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.76ms. Allocated memory is still 167.8MB. Free memory was 108.5MB in the beginning and 106.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 364.34ms. Allocated memory is still 167.8MB. Free memory was 106.7MB in the beginning and 85.0MB in the end (delta: 21.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6846.51ms. Allocated memory was 167.8MB in the beginning and 763.4MB in the end (delta: 595.6MB). Free memory was 84.6MB in the beginning and 247.7MB in the end (delta: -163.1MB). Peak memory consumption was 435.9MB. Max. memory is 16.1GB. * Witness Printer took 60.88ms. Allocated memory is still 763.4MB. Free memory was 247.7MB in the beginning and 239.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 711]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 711]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 740]: 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 7 procedures, 82 locations, 16 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: 6.7s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 584 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 550 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 90 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1401 IncrementalHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 90 mSolverCounterUnsat, 23 mSDtfsCounter, 1401 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=386occurred in iteration=5, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 460 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 06:34:18,968 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