./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix014.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix014.opt.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 615dc0a4278e77a094a63ed4629507c6f8d1cda73abba57cd69e8912d83fe5fd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 23:50:08,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 23:50:08,505 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 23:50:08,509 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 23:50:08,512 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 23:50:08,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 23:50:08,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 23:50:08,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 23:50:08,544 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 23:50:08,545 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 23:50:08,546 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 23:50:08,546 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 23:50:08,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 23:50:08,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 23:50:08,549 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 23:50:08,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 23:50:08,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 23:50:08,550 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 23:50:08,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 23:50:08,550 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 23:50:08,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 23:50:08,555 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 23:50:08,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 23:50:08,555 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 23:50:08,556 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 23:50:08,556 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 23:50:08,556 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 23:50:08,556 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 23:50:08,557 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 23:50:08,557 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 23:50:08,557 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 23:50:08,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 23:50:08,558 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 23:50:08,558 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 23:50:08,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:50:08,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 23:50:08,559 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 23:50:08,559 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 23:50:08,559 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 23:50:08,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 23:50:08,559 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 23:50:08,560 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 23:50:08,560 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 23:50:08,561 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 23:50:08,561 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 615dc0a4278e77a094a63ed4629507c6f8d1cda73abba57cd69e8912d83fe5fd [2024-10-11 23:50:08,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 23:50:08,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 23:50:08,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 23:50:08,896 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 23:50:08,896 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 23:50:08,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix014.opt.i [2024-10-11 23:50:10,384 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 23:50:10,685 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 23:50:10,687 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix014.opt.i [2024-10-11 23:50:10,708 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d2e185e14/fd9010fc48a647dbae80ff7dd73c24f7/FLAG93faf40e4 [2024-10-11 23:50:10,725 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d2e185e14/fd9010fc48a647dbae80ff7dd73c24f7 [2024-10-11 23:50:10,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 23:50:10,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 23:50:10,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 23:50:10,733 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 23:50:10,738 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 23:50:10,739 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:50:10" (1/1) ... [2024-10-11 23:50:10,740 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc609f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:10, skipping insertion in model container [2024-10-11 23:50:10,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:50:10" (1/1) ... [2024-10-11 23:50:10,802 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 23:50:11,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:50:11,154 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 23:50:11,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:50:11,284 INFO L204 MainTranslator]: Completed translation [2024-10-11 23:50:11,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:11 WrapperNode [2024-10-11 23:50:11,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 23:50:11,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 23:50:11,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 23:50:11,287 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 23:50:11,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:11" (1/1) ... [2024-10-11 23:50:11,318 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:11" (1/1) ... [2024-10-11 23:50:11,363 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 157 [2024-10-11 23:50:11,368 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 23:50:11,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 23:50:11,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 23:50:11,372 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 23:50:11,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:11" (1/1) ... [2024-10-11 23:50:11,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:11" (1/1) ... [2024-10-11 23:50:11,387 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:11" (1/1) ... [2024-10-11 23:50:11,417 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]. [2024-10-11 23:50:11,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:11" (1/1) ... [2024-10-11 23:50:11,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:11" (1/1) ... [2024-10-11 23:50:11,433 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:11" (1/1) ... [2024-10-11 23:50:11,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:11" (1/1) ... [2024-10-11 23:50:11,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:11" (1/1) ... [2024-10-11 23:50:11,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:11" (1/1) ... [2024-10-11 23:50:11,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 23:50:11,450 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 23:50:11,452 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 23:50:11,452 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 23:50:11,453 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:11" (1/1) ... [2024-10-11 23:50:11,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:50:11,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:50:11,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 23:50:11,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 23:50:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 23:50:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 23:50:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 23:50:11,540 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 23:50:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 23:50:11,540 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 23:50:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 23:50:11,540 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 23:50:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-11 23:50:11,541 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-11 23:50:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 23:50:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 23:50:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 23:50:11,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 23:50:11,543 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 23:50:11,841 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 23:50:11,844 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 23:50:12,227 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 23:50:12,227 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 23:50:12,503 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 23:50:12,503 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 23:50:12,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:50:12 BoogieIcfgContainer [2024-10-11 23:50:12,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 23:50:12,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 23:50:12,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 23:50:12,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 23:50:12,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 11:50:10" (1/3) ... [2024-10-11 23:50:12,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a8d12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:50:12, skipping insertion in model container [2024-10-11 23:50:12,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:11" (2/3) ... [2024-10-11 23:50:12,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a8d12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:50:12, skipping insertion in model container [2024-10-11 23:50:12,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:50:12" (3/3) ... [2024-10-11 23:50:12,516 INFO L112 eAbstractionObserver]: Analyzing ICFG mix014.opt.i [2024-10-11 23:50:12,534 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 23:50:12,534 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-11 23:50:12,535 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 23:50:12,604 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 23:50:12,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 52 transitions, 120 flow [2024-10-11 23:50:12,687 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2024-10-11 23:50:12,688 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:50:12,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 48 events. 0/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 126 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-11 23:50:12,692 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 52 transitions, 120 flow [2024-10-11 23:50:12,695 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 48 transitions, 108 flow [2024-10-11 23:50:12,710 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:50:12,722 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;@7dfbc760, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:50:12,722 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-10-11 23:50:12,730 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 23:50:12,730 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-10-11 23:50:12,730 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:50:12,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:50:12,731 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:50:12,733 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-11 23:50:12,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:50:12,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1619956522, now seen corresponding path program 1 times [2024-10-11 23:50:12,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:50:12,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013145118] [2024-10-11 23:50:12,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:50:12,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:50:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:50:13,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:50:13,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:50:13,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013145118] [2024-10-11 23:50:13,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013145118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:50:13,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:50:13,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 23:50:13,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232294350] [2024-10-11 23:50:13,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:50:13,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 23:50:13,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:50:13,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 23:50:13,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:50:13,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 52 [2024-10-11 23:50:13,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-10-11 23:50:13,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:50:13,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 52 [2024-10-11 23:50:13,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:50:15,969 INFO L124 PetriNetUnfolderBase]: 15277/20542 cut-off events. [2024-10-11 23:50:15,969 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-10-11 23:50:16,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41332 conditions, 20542 events. 15277/20542 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 2053. Compared 141014 event pairs, 7263 based on Foata normal form. 0/14348 useless extension candidates. Maximal degree in co-relation 41320. Up to 20417 conditions per place. [2024-10-11 23:50:16,169 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 45 selfloop transitions, 5 changer transitions 0/66 dead transitions. [2024-10-11 23:50:16,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 66 transitions, 253 flow [2024-10-11 23:50:16,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:50:16,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 23:50:16,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-10-11 23:50:16,182 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7564102564102564 [2024-10-11 23:50:16,184 INFO L175 Difference]: Start difference. First operand has 61 places, 48 transitions, 108 flow. Second operand 3 states and 118 transitions. [2024-10-11 23:50:16,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 66 transitions, 253 flow [2024-10-11 23:50:16,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 66 transitions, 246 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 23:50:16,192 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 151 flow [2024-10-11 23:50:16,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2024-10-11 23:50:16,198 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2024-10-11 23:50:16,198 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 151 flow [2024-10-11 23:50:16,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-10-11 23:50:16,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:50:16,199 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:50:16,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 23:50:16,200 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-11 23:50:16,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:50:16,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1932656697, now seen corresponding path program 1 times [2024-10-11 23:50:16,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:50:16,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887881393] [2024-10-11 23:50:16,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:50:16,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:50:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:50:16,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:50:16,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:50:16,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887881393] [2024-10-11 23:50:16,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887881393] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:50:16,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:50:16,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:50:16,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101587741] [2024-10-11 23:50:16,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:50:16,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:50:16,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:50:16,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:50:16,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:50:16,328 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 52 [2024-10-11 23:50:16,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 151 flow. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2024-10-11 23:50:16,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:50:16,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 52 [2024-10-11 23:50:16,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:50:17,811 INFO L124 PetriNetUnfolderBase]: 7641/10386 cut-off events. [2024-10-11 23:50:17,812 INFO L125 PetriNetUnfolderBase]: For 909/915 co-relation queries the response was YES. [2024-10-11 23:50:17,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25147 conditions, 10386 events. 7641/10386 cut-off events. For 909/915 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 66318 event pairs, 3143 based on Foata normal form. 2/8390 useless extension candidates. Maximal degree in co-relation 25136. Up to 10260 conditions per place. [2024-10-11 23:50:17,922 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 41 selfloop transitions, 5 changer transitions 0/62 dead transitions. [2024-10-11 23:50:17,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 62 transitions, 261 flow [2024-10-11 23:50:17,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:50:17,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:50:17,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-10-11 23:50:17,925 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-10-11 23:50:17,925 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 151 flow. Second operand 4 states and 130 transitions. [2024-10-11 23:50:17,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 62 transitions, 261 flow [2024-10-11 23:50:17,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 62 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:50:17,928 INFO L231 Difference]: Finished difference. Result has 58 places, 48 transitions, 140 flow [2024-10-11 23:50:17,929 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2024-10-11 23:50:17,931 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2024-10-11 23:50:17,932 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 140 flow [2024-10-11 23:50:17,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2024-10-11 23:50:17,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:50:17,933 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:50:17,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 23:50:17,934 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-11 23:50:17,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:50:17,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1932656698, now seen corresponding path program 1 times [2024-10-11 23:50:17,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:50:17,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728803578] [2024-10-11 23:50:17,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:50:17,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:50:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:50:18,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:50:18,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:50:18,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728803578] [2024-10-11 23:50:18,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728803578] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:50:18,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:50:18,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:50:18,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345878900] [2024-10-11 23:50:18,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:50:18,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:50:18,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:50:18,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:50:18,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:50:18,063 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 52 [2024-10-11 23:50:18,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2024-10-11 23:50:18,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:50:18,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 52 [2024-10-11 23:50:18,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:50:18,872 INFO L124 PetriNetUnfolderBase]: 5209/7202 cut-off events. [2024-10-11 23:50:18,873 INFO L125 PetriNetUnfolderBase]: For 969/975 co-relation queries the response was YES. [2024-10-11 23:50:18,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17020 conditions, 7202 events. 5209/7202 cut-off events. For 969/975 co-relation queries the response was YES. Maximal size of possible extension queue 596. Compared 43680 event pairs, 1005 based on Foata normal form. 2/6290 useless extension candidates. Maximal degree in co-relation 17008. Up to 6369 conditions per place. [2024-10-11 23:50:19,004 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 57 selfloop transitions, 9 changer transitions 0/82 dead transitions. [2024-10-11 23:50:19,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 82 transitions, 358 flow [2024-10-11 23:50:19,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:50:19,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:50:19,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 150 transitions. [2024-10-11 23:50:19,007 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7211538461538461 [2024-10-11 23:50:19,007 INFO L175 Difference]: Start difference. First operand has 58 places, 48 transitions, 140 flow. Second operand 4 states and 150 transitions. [2024-10-11 23:50:19,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 82 transitions, 358 flow [2024-10-11 23:50:19,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 82 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 23:50:19,009 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 192 flow [2024-10-11 23:50:19,010 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2024-10-11 23:50:19,010 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2024-10-11 23:50:19,010 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 192 flow [2024-10-11 23:50:19,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2024-10-11 23:50:19,011 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:50:19,011 INFO L204 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] [2024-10-11 23:50:19,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 23:50:19,011 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-11 23:50:19,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:50:19,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1567725276, now seen corresponding path program 1 times [2024-10-11 23:50:19,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:50:19,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701939708] [2024-10-11 23:50:19,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:50:19,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:50:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:50:19,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:50:19,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:50:19,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701939708] [2024-10-11 23:50:19,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701939708] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:50:19,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:50:19,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:50:19,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707962465] [2024-10-11 23:50:19,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:50:19,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 23:50:19,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:50:19,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 23:50:19,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-11 23:50:19,166 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 52 [2024-10-11 23:50:19,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2024-10-11 23:50:19,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:50:19,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 52 [2024-10-11 23:50:19,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:50:19,828 INFO L124 PetriNetUnfolderBase]: 3481/4850 cut-off events. [2024-10-11 23:50:19,828 INFO L125 PetriNetUnfolderBase]: For 2428/2440 co-relation queries the response was YES. [2024-10-11 23:50:19,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13179 conditions, 4850 events. 3481/4850 cut-off events. For 2428/2440 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 27562 event pairs, 165 based on Foata normal form. 4/4684 useless extension candidates. Maximal degree in co-relation 13166. Up to 2353 conditions per place. [2024-10-11 23:50:19,876 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 67 selfloop transitions, 13 changer transitions 4/100 dead transitions. [2024-10-11 23:50:19,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 100 transitions, 484 flow [2024-10-11 23:50:19,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 23:50:19,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 23:50:19,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 188 transitions. [2024-10-11 23:50:19,879 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7230769230769231 [2024-10-11 23:50:19,879 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 192 flow. Second operand 5 states and 188 transitions. [2024-10-11 23:50:19,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 100 transitions, 484 flow [2024-10-11 23:50:19,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 100 transitions, 466 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-11 23:50:19,884 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 216 flow [2024-10-11 23:50:19,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=216, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2024-10-11 23:50:19,885 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 2 predicate places. [2024-10-11 23:50:19,886 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 216 flow [2024-10-11 23:50:19,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2024-10-11 23:50:19,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:50:19,886 INFO L204 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, 1, 1, 1, 1, 1] [2024-10-11 23:50:19,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 23:50:19,887 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-11 23:50:19,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:50:19,887 INFO L85 PathProgramCache]: Analyzing trace with hash -789163224, now seen corresponding path program 1 times [2024-10-11 23:50:19,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:50:19,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450101540] [2024-10-11 23:50:19,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:50:19,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:50:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:50:20,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:50:20,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:50:20,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450101540] [2024-10-11 23:50:20,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450101540] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:50:20,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:50:20,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 23:50:20,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995258509] [2024-10-11 23:50:20,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:50:20,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 23:50:20,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:50:20,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 23:50:20,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 23:50:20,113 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 52 [2024-10-11 23:50:20,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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) [2024-10-11 23:50:20,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:50:20,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 52 [2024-10-11 23:50:20,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:50:20,949 INFO L124 PetriNetUnfolderBase]: 2809/3938 cut-off events. [2024-10-11 23:50:20,949 INFO L125 PetriNetUnfolderBase]: For 4600/4612 co-relation queries the response was YES. [2024-10-11 23:50:20,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11390 conditions, 3938 events. 2809/3938 cut-off events. For 4600/4612 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 22511 event pairs, 45 based on Foata normal form. 164/4092 useless extension candidates. Maximal degree in co-relation 11376. Up to 1664 conditions per place. [2024-10-11 23:50:20,977 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 0 selfloop transitions, 0 changer transitions 92/92 dead transitions. [2024-10-11 23:50:20,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 92 transitions, 436 flow [2024-10-11 23:50:20,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 23:50:20,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 23:50:20,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 200 transitions. [2024-10-11 23:50:20,979 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410256410256411 [2024-10-11 23:50:20,979 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 216 flow. Second operand 6 states and 200 transitions. [2024-10-11 23:50:20,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 92 transitions, 436 flow [2024-10-11 23:50:21,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 92 transitions, 381 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-10-11 23:50:21,014 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2024-10-11 23:50:21,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2024-10-11 23:50:21,017 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2024-10-11 23:50:21,017 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2024-10-11 23:50:21,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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) [2024-10-11 23:50:21,023 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2024-10-11 23:50:21,024 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2024-10-11 23:50:21,024 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2024-10-11 23:50:21,024 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2024-10-11 23:50:21,024 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2024-10-11 23:50:21,024 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2024-10-11 23:50:21,025 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2024-10-11 23:50:21,025 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2024-10-11 23:50:21,025 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2024-10-11 23:50:21,027 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2024-10-11 23:50:21,027 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2024-10-11 23:50:21,027 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2024-10-11 23:50:21,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2024-10-11 23:50:21,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2024-10-11 23:50:21,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2024-10-11 23:50:21,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2024-10-11 23:50:21,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2024-10-11 23:50:21,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2024-10-11 23:50:21,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2024-10-11 23:50:21,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2024-10-11 23:50:21,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 23:50:21,030 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-11 23:50:21,035 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 23:50:21,036 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 23:50:21,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 11:50:21 BasicIcfg [2024-10-11 23:50:21,042 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 23:50:21,042 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 23:50:21,043 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 23:50:21,043 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 23:50:21,043 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:50:12" (3/4) ... [2024-10-11 23:50:21,046 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 23:50:21,049 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-11 23:50:21,050 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-11 23:50:21,050 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-11 23:50:21,050 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-10-11 23:50:21,058 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 80 nodes and edges [2024-10-11 23:50:21,060 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-10-11 23:50:21,060 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 23:50:21,060 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 23:50:21,166 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 23:50:21,167 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 23:50:21,167 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 23:50:21,168 INFO L158 Benchmark]: Toolchain (without parser) took 10438.29ms. Allocated memory was 172.0MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 136.4MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 420.5MB. Max. memory is 16.1GB. [2024-10-11 23:50:21,168 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 102.8MB. Free memory was 73.9MB in the beginning and 73.7MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 23:50:21,168 INFO L158 Benchmark]: CACSL2BoogieTranslator took 554.02ms. Allocated memory is still 172.0MB. Free memory was 136.4MB in the beginning and 110.0MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-11 23:50:21,169 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.64ms. Allocated memory is still 172.0MB. Free memory was 110.0MB in the beginning and 107.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 23:50:21,169 INFO L158 Benchmark]: Boogie Preprocessor took 81.06ms. Allocated memory is still 172.0MB. Free memory was 107.0MB in the beginning and 102.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 23:50:21,169 INFO L158 Benchmark]: RCFGBuilder took 1053.76ms. Allocated memory is still 172.0MB. Free memory was 102.9MB in the beginning and 81.3MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 23:50:21,170 INFO L158 Benchmark]: TraceAbstraction took 8535.47ms. Allocated memory was 172.0MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 81.3MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 533.5MB. Max. memory is 16.1GB. [2024-10-11 23:50:21,172 INFO L158 Benchmark]: Witness Printer took 124.75ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 23:50:21,174 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 102.8MB. Free memory was 73.9MB in the beginning and 73.7MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 554.02ms. Allocated memory is still 172.0MB. Free memory was 136.4MB in the beginning and 110.0MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.64ms. Allocated memory is still 172.0MB. Free memory was 110.0MB in the beginning and 107.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.06ms. Allocated memory is still 172.0MB. Free memory was 107.0MB in the beginning and 102.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1053.76ms. Allocated memory is still 172.0MB. Free memory was 102.9MB in the beginning and 81.3MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8535.47ms. Allocated memory was 172.0MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 81.3MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 533.5MB. Max. memory is 16.1GB. * Witness Printer took 124.75ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: 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 9 procedures, 95 locations, 20 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: 8.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 217 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 207 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 432 IncrementalHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 0 mSDtfsCounter, 432 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 0.7s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 23:50:21,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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