./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c --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/verifythis/elimination_max_rec_onepoint.c -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 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 02:39:07,348 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 02:39:07,384 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 02:39:07,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 02:39:07,387 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 02:39:07,403 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 02:39:07,403 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 02:39:07,403 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 02:39:07,404 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 02:39:07,404 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 02:39:07,404 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 02:39:07,404 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 02:39:07,404 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 02:39:07,404 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 02:39:07,404 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 02:39:07,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 02:39:07,405 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 02:39:07,405 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 02:39:07,405 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 02:39:07,405 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 02:39:07,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 02:39:07,405 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 02:39:07,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 02:39:07,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 02:39:07,405 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 02:39:07,405 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 02:39:07,405 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 02:39:07,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 02:39:07,406 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 02:39:07,406 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 02:39:07,406 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 02:39:07,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 02:39:07,406 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 02:39:07,406 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 02:39:07,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 02:39:07,406 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 02:39:07,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 02:39:07,406 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 02:39:07,406 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 02:39:07,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 02:39:07,407 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 02:39:07,407 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 02:39:07,407 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 02:39:07,407 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 02:39:07,407 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 02:39:07,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 02:39:07,407 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 02:39:07,407 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 02:39:07,407 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 02:39:07,407 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 02:39:07,408 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 -> 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1 [2025-01-10 02:39:07,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 02:39:07,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 02:39:07,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 02:39:07,679 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 02:39:07,679 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 02:39:07,680 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2025-01-10 02:39:09,086 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6391b7507/c40588583fea4a65baee4b69da03a88d/FLAG8cc567941 [2025-01-10 02:39:09,386 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 02:39:09,391 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2025-01-10 02:39:09,398 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6391b7507/c40588583fea4a65baee4b69da03a88d/FLAG8cc567941 [2025-01-10 02:39:09,413 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6391b7507/c40588583fea4a65baee4b69da03a88d [2025-01-10 02:39:09,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 02:39:09,416 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 02:39:09,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 02:39:09,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 02:39:09,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 02:39:09,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:39:09" (1/1) ... [2025-01-10 02:39:09,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b3df4d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:09, skipping insertion in model container [2025-01-10 02:39:09,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:39:09" (1/1) ... [2025-01-10 02:39:09,434 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 02:39:09,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 02:39:09,554 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 02:39:09,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 02:39:09,581 INFO L204 MainTranslator]: Completed translation [2025-01-10 02:39:09,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:09 WrapperNode [2025-01-10 02:39:09,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 02:39:09,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 02:39:09,584 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 02:39:09,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 02:39:09,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:09" (1/1) ... [2025-01-10 02:39:09,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:09" (1/1) ... [2025-01-10 02:39:09,603 INFO L138 Inliner]: procedures = 19, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2025-01-10 02:39:09,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 02:39:09,604 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 02:39:09,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 02:39:09,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 02:39:09,609 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:09" (1/1) ... [2025-01-10 02:39:09,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:09" (1/1) ... [2025-01-10 02:39:09,612 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:09" (1/1) ... [2025-01-10 02:39:09,626 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-01-10 02:39:09,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:09" (1/1) ... [2025-01-10 02:39:09,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:09" (1/1) ... [2025-01-10 02:39:09,634 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:09" (1/1) ... [2025-01-10 02:39:09,634 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:09" (1/1) ... [2025-01-10 02:39:09,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:09" (1/1) ... [2025-01-10 02:39:09,635 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:09" (1/1) ... [2025-01-10 02:39:09,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:09" (1/1) ... [2025-01-10 02:39:09,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 02:39:09,641 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 02:39:09,642 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 02:39:09,642 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 02:39:09,643 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:09" (1/1) ... [2025-01-10 02:39:09,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 02:39:09,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:39:09,670 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 02:39:09,672 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 02:39:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 02:39:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-10 02:39:09,693 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-10 02:39:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 02:39:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 02:39:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure check [2025-01-10 02:39:09,694 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2025-01-10 02:39:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 02:39:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 02:39:09,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 02:39:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 02:39:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 02:39:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-10 02:39:09,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-10 02:39:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 02:39:09,754 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 02:39:09,756 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 02:39:09,921 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2025-01-10 02:39:09,922 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 02:39:09,930 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 02:39:09,931 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 02:39:09,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:39:09 BoogieIcfgContainer [2025-01-10 02:39:09,932 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 02:39:09,933 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 02:39:09,934 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 02:39:09,937 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 02:39:09,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:39:09" (1/3) ... [2025-01-10 02:39:09,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db52b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:39:09, skipping insertion in model container [2025-01-10 02:39:09,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:09" (2/3) ... [2025-01-10 02:39:09,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db52b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:39:09, skipping insertion in model container [2025-01-10 02:39:09,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:39:09" (3/3) ... [2025-01-10 02:39:09,939 INFO L128 eAbstractionObserver]: Analyzing ICFG elimination_max_rec_onepoint.c [2025-01-10 02:39:09,948 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 02:39:09,950 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elimination_max_rec_onepoint.c that has 4 procedures, 47 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-01-10 02:39:09,979 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 02:39:09,986 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;@56f6d496, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 02:39:09,987 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-01-10 02:39:09,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 35 states have internal predecessors, (39), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 02:39:09,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-01-10 02:39:09,992 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:39:09,993 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:39:09,993 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-01-10 02:39:09,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:39:09,996 INFO L85 PathProgramCache]: Analyzing trace with hash 734614260, now seen corresponding path program 1 times [2025-01-10 02:39:10,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:39:10,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973511916] [2025-01-10 02:39:10,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:39:10,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:39:10,052 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 02:39:10,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 02:39:10,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:39:10,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:10,101 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 02:39:10,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:39:10,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973511916] [2025-01-10 02:39:10,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973511916] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:39:10,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720734709] [2025-01-10 02:39:10,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:39:10,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:39:10,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:39:10,106 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:39:10,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 02:39:10,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 02:39:10,170 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 02:39:10,170 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:39:10,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:10,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-10 02:39:10,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:39:10,182 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 02:39:10,183 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:39:10,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720734709] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:39:10,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 02:39:10,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-10 02:39:10,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473691255] [2025-01-10 02:39:10,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:39:10,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-10 02:39:10,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:39:10,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-10 02:39:10,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-10 02:39:10,202 INFO L87 Difference]: Start difference. First operand has 47 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 35 states have internal predecessors, (39), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:39:10,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:39:10,219 INFO L93 Difference]: Finished difference Result 90 states and 113 transitions. [2025-01-10 02:39:10,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-10 02:39:10,220 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2025-01-10 02:39:10,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:39:10,224 INFO L225 Difference]: With dead ends: 90 [2025-01-10 02:39:10,224 INFO L226 Difference]: Without dead ends: 35 [2025-01-10 02:39:10,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-10 02:39:10,229 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:39:10,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:39:10,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-01-10 02:39:10,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-01-10 02:39:10,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 27 states have internal predecessors, (28), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-01-10 02:39:10,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2025-01-10 02:39:10,258 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2025-01-10 02:39:10,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:39:10,258 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2025-01-10 02:39:10,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:39:10,259 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2025-01-10 02:39:10,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-01-10 02:39:10,260 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:39:10,260 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:39:10,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 02:39:10,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-10 02:39:10,461 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-01-10 02:39:10,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:39:10,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1050038000, now seen corresponding path program 1 times [2025-01-10 02:39:10,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:39:10,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990917334] [2025-01-10 02:39:10,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:39:10,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:39:10,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 02:39:10,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 02:39:10,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:39:10,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:10,608 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 02:39:10,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:39:10,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990917334] [2025-01-10 02:39:10,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990917334] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:39:10,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227683665] [2025-01-10 02:39:10,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:39:10,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:39:10,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:39:10,611 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:39:10,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 02:39:10,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 02:39:10,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 02:39:10,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:39:10,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:10,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 02:39:10,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:39:10,704 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 02:39:10,704 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:39:10,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227683665] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:39:10,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 02:39:10,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 6 [2025-01-10 02:39:10,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225587422] [2025-01-10 02:39:10,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:39:10,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 02:39:10,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:39:10,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 02:39:10,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-10 02:39:10,706 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 6 states, 4 states have (on average 3.0) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:39:10,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:39:10,764 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2025-01-10 02:39:10,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 02:39:10,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 3.0) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2025-01-10 02:39:10,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:39:10,765 INFO L225 Difference]: With dead ends: 35 [2025-01-10 02:39:10,765 INFO L226 Difference]: Without dead ends: 33 [2025-01-10 02:39:10,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 02:39:10,766 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:39:10,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 131 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:39:10,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2025-01-10 02:39:10,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2025-01-10 02:39:10,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 25 states have internal predecessors, (26), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-01-10 02:39:10,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2025-01-10 02:39:10,770 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 16 [2025-01-10 02:39:10,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:39:10,770 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2025-01-10 02:39:10,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 3.0) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:39:10,771 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2025-01-10 02:39:10,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-01-10 02:39:10,771 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:39:10,771 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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 02:39:10,777 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 02:39:10,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:39:10,976 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-01-10 02:39:10,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:39:10,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1984831185, now seen corresponding path program 1 times [2025-01-10 02:39:10,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:39:10,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070023803] [2025-01-10 02:39:10,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:39:10,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:39:10,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-01-10 02:39:10,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-10 02:39:10,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:39:10,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:11,076 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 02:39:11,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:39:11,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070023803] [2025-01-10 02:39:11,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070023803] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:39:11,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:39:11,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 02:39:11,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21764732] [2025-01-10 02:39:11,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:39:11,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 02:39:11,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:39:11,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 02:39:11,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:39:11,078 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 02:39:11,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:39:11,128 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2025-01-10 02:39:11,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 02:39:11,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2025-01-10 02:39:11,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:39:11,131 INFO L225 Difference]: With dead ends: 49 [2025-01-10 02:39:11,131 INFO L226 Difference]: Without dead ends: 47 [2025-01-10 02:39:11,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-10 02:39:11,132 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 17 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:39:11,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 120 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:39:11,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2025-01-10 02:39:11,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2025-01-10 02:39:11,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 33 states have internal predecessors, (37), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-10 02:39:11,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2025-01-10 02:39:11,141 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 33 [2025-01-10 02:39:11,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:39:11,141 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2025-01-10 02:39:11,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 02:39:11,142 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2025-01-10 02:39:11,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-01-10 02:39:11,143 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:39:11,143 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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 02:39:11,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 02:39:11,143 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-01-10 02:39:11,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:39:11,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1984830993, now seen corresponding path program 1 times [2025-01-10 02:39:11,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:39:11,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588968814] [2025-01-10 02:39:11,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:39:11,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:39:11,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-01-10 02:39:11,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-10 02:39:11,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:39:11,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:11,257 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 02:39:11,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:39:11,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588968814] [2025-01-10 02:39:11,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588968814] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:39:11,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:39:11,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 02:39:11,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804136133] [2025-01-10 02:39:11,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:39:11,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 02:39:11,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:39:11,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 02:39:11,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-10 02:39:11,260 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 02:39:11,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:39:11,320 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2025-01-10 02:39:11,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 02:39:11,321 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2025-01-10 02:39:11,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:39:11,321 INFO L225 Difference]: With dead ends: 47 [2025-01-10 02:39:11,322 INFO L226 Difference]: Without dead ends: 46 [2025-01-10 02:39:11,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-01-10 02:39:11,323 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 19 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:39:11,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 172 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:39:11,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2025-01-10 02:39:11,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2025-01-10 02:39:11,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 33 states have internal predecessors, (36), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-10 02:39:11,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2025-01-10 02:39:11,327 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 33 [2025-01-10 02:39:11,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:39:11,327 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2025-01-10 02:39:11,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 02:39:11,327 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2025-01-10 02:39:11,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-01-10 02:39:11,328 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:39:11,328 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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 02:39:11,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 02:39:11,328 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting checkErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-01-10 02:39:11,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:39:11,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1400218561, now seen corresponding path program 1 times [2025-01-10 02:39:11,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:39:11,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480381897] [2025-01-10 02:39:11,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:39:11,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:39:11,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-10 02:39:11,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-10 02:39:11,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:39:11,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:11,405 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 02:39:11,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:39:11,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480381897] [2025-01-10 02:39:11,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480381897] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:39:11,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:39:11,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 02:39:11,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270883001] [2025-01-10 02:39:11,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:39:11,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 02:39:11,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:39:11,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 02:39:11,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 02:39:11,409 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 02:39:11,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:39:11,462 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2025-01-10 02:39:11,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 02:39:11,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2025-01-10 02:39:11,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:39:11,463 INFO L225 Difference]: With dead ends: 44 [2025-01-10 02:39:11,463 INFO L226 Difference]: Without dead ends: 43 [2025-01-10 02:39:11,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 02:39:11,463 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 17 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:39:11,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 101 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:39:11,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2025-01-10 02:39:11,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2025-01-10 02:39:11,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 32 states have internal predecessors, (34), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-10 02:39:11,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2025-01-10 02:39:11,468 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 34 [2025-01-10 02:39:11,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:39:11,468 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2025-01-10 02:39:11,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 02:39:11,468 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2025-01-10 02:39:11,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-10 02:39:11,469 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:39:11,469 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:39:11,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 02:39:11,470 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-01-10 02:39:11,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:39:11,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1958074394, now seen corresponding path program 1 times [2025-01-10 02:39:11,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:39:11,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459165186] [2025-01-10 02:39:11,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:39:11,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:39:11,480 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-10 02:39:11,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-10 02:39:11,493 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:39:11,493 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:11,657 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-10 02:39:11,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:39:11,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459165186] [2025-01-10 02:39:11,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459165186] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:39:11,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328149105] [2025-01-10 02:39:11,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:39:11,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:39:11,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:39:11,662 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:39:11,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-10 02:39:11,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-10 02:39:11,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-10 02:39:11,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:39:11,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:11,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 02:39:11,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:39:11,788 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-10 02:39:11,788 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:39:11,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328149105] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:39:11,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 02:39:11,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2025-01-10 02:39:11,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089095174] [2025-01-10 02:39:11,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:39:11,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 02:39:11,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:39:11,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 02:39:11,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-01-10 02:39:11,790 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-01-10 02:39:11,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:39:11,859 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2025-01-10 02:39:11,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 02:39:11,860 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 50 [2025-01-10 02:39:11,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:39:11,861 INFO L225 Difference]: With dead ends: 44 [2025-01-10 02:39:11,861 INFO L226 Difference]: Without dead ends: 43 [2025-01-10 02:39:11,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2025-01-10 02:39:11,861 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 28 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:39:11,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 160 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:39:11,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2025-01-10 02:39:11,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2025-01-10 02:39:11,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 31 states have internal predecessors, (33), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-10 02:39:11,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2025-01-10 02:39:11,868 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 50 [2025-01-10 02:39:11,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:39:11,868 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2025-01-10 02:39:11,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-01-10 02:39:11,868 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2025-01-10 02:39:11,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-10 02:39:11,871 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:39:11,871 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:39:11,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 02:39:12,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:39:12,074 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-01-10 02:39:12,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:39:12,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1958074202, now seen corresponding path program 1 times [2025-01-10 02:39:12,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:39:12,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383407350] [2025-01-10 02:39:12,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:39:12,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:39:12,086 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-10 02:39:12,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-10 02:39:12,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:39:12,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:12,178 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-10 02:39:12,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:39:12,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383407350] [2025-01-10 02:39:12,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383407350] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:39:12,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127498155] [2025-01-10 02:39:12,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:39:12,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:39:12,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:39:12,181 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:39:12,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-10 02:39:12,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-10 02:39:12,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-10 02:39:12,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:39:12,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:12,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-10 02:39:12,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:39:12,343 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-10 02:39:12,343 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:39:12,524 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-10 02:39:12,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127498155] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:39:12,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:39:12,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 21 [2025-01-10 02:39:12,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928192712] [2025-01-10 02:39:12,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:39:12,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-01-10 02:39:12,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:39:12,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-01-10 02:39:12,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2025-01-10 02:39:12,527 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 22 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 16 states have internal predecessors, (46), 9 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2025-01-10 02:39:12,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:39:12,795 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2025-01-10 02:39:12,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-10 02:39:12,795 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 16 states have internal predecessors, (46), 9 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 50 [2025-01-10 02:39:12,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:39:12,796 INFO L225 Difference]: With dead ends: 44 [2025-01-10 02:39:12,796 INFO L226 Difference]: Without dead ends: 43 [2025-01-10 02:39:12,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=900, Unknown=0, NotChecked=0, Total=1122 [2025-01-10 02:39:12,797 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 75 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:39:12,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 261 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:39:12,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2025-01-10 02:39:12,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2025-01-10 02:39:12,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.103448275862069) internal successors, (32), 30 states have internal predecessors, (32), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-10 02:39:12,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2025-01-10 02:39:12,802 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 50 [2025-01-10 02:39:12,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:39:12,802 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2025-01-10 02:39:12,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 16 states have internal predecessors, (46), 9 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2025-01-10 02:39:12,802 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2025-01-10 02:39:12,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-01-10 02:39:12,803 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:39:12,803 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:39:12,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-10 02:39:13,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-01-10 02:39:13,007 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-01-10 02:39:13,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:39:13,008 INFO L85 PathProgramCache]: Analyzing trace with hash -570763998, now seen corresponding path program 1 times [2025-01-10 02:39:13,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:39:13,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004018657] [2025-01-10 02:39:13,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:39:13,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:39:13,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-01-10 02:39:13,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-01-10 02:39:13,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:39:13,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:13,092 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-10 02:39:13,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:39:13,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004018657] [2025-01-10 02:39:13,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004018657] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:39:13,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424226476] [2025-01-10 02:39:13,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:39:13,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:39:13,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:39:13,096 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:39:13,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-10 02:39:13,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-01-10 02:39:13,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-01-10 02:39:13,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:39:13,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:13,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 02:39:13,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:39:13,190 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-10 02:39:13,191 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:39:13,284 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-10 02:39:13,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424226476] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:39:13,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:39:13,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2025-01-10 02:39:13,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261291900] [2025-01-10 02:39:13,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:39:13,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-01-10 02:39:13,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:39:13,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-01-10 02:39:13,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2025-01-10 02:39:13,286 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 17 states, 16 states have (on average 2.6875) internal successors, (43), 12 states have internal predecessors, (43), 6 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2025-01-10 02:39:13,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:39:13,431 INFO L93 Difference]: Finished difference Result 79 states and 96 transitions. [2025-01-10 02:39:13,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-10 02:39:13,431 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.6875) internal successors, (43), 12 states have internal predecessors, (43), 6 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 51 [2025-01-10 02:39:13,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:39:13,432 INFO L225 Difference]: With dead ends: 79 [2025-01-10 02:39:13,432 INFO L226 Difference]: Without dead ends: 78 [2025-01-10 02:39:13,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2025-01-10 02:39:13,433 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 60 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:39:13,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 240 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:39:13,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2025-01-10 02:39:13,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2025-01-10 02:39:13,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 53 states have (on average 1.1132075471698113) internal successors, (59), 54 states have internal predecessors, (59), 18 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-01-10 02:39:13,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 89 transitions. [2025-01-10 02:39:13,440 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 89 transitions. Word has length 51 [2025-01-10 02:39:13,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:39:13,440 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 89 transitions. [2025-01-10 02:39:13,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.6875) internal successors, (43), 12 states have internal predecessors, (43), 6 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2025-01-10 02:39:13,441 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 89 transitions. [2025-01-10 02:39:13,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-01-10 02:39:13,446 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:39:13,446 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:39:13,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-10 02:39:13,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:39:13,646 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-01-10 02:39:13,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:39:13,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1714613049, now seen corresponding path program 2 times [2025-01-10 02:39:13,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:39:13,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330133293] [2025-01-10 02:39:13,647 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 02:39:13,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:39:13,656 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 102 statements into 2 equivalence classes. [2025-01-10 02:39:13,674 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 102 of 102 statements. [2025-01-10 02:39:13,674 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 02:39:13,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:13,998 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2025-01-10 02:39:13,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:39:13,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330133293] [2025-01-10 02:39:13,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330133293] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:39:13,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328470957] [2025-01-10 02:39:13,998 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 02:39:13,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:39:13,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:39:14,003 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:39:14,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-10 02:39:14,049 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 102 statements into 2 equivalence classes. [2025-01-10 02:39:14,088 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 102 of 102 statements. [2025-01-10 02:39:14,088 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 02:39:14,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:14,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-01-10 02:39:14,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:39:14,181 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2025-01-10 02:39:14,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:39:14,451 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2025-01-10 02:39:14,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328470957] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:39:14,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:39:14,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 34 [2025-01-10 02:39:14,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623018920] [2025-01-10 02:39:14,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:39:14,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-01-10 02:39:14,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:39:14,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-01-10 02:39:14,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=958, Unknown=0, NotChecked=0, Total=1190 [2025-01-10 02:39:14,454 INFO L87 Difference]: Start difference. First operand 74 states and 89 transitions. Second operand has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 24 states have internal predecessors, (79), 12 states have call successors, (35), 12 states have call predecessors, (35), 1 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) [2025-01-10 02:39:14,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:39:14,987 INFO L93 Difference]: Finished difference Result 151 states and 189 transitions. [2025-01-10 02:39:14,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-01-10 02:39:14,988 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 24 states have internal predecessors, (79), 12 states have call successors, (35), 12 states have call predecessors, (35), 1 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) Word has length 102 [2025-01-10 02:39:14,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:39:14,989 INFO L225 Difference]: With dead ends: 151 [2025-01-10 02:39:14,989 INFO L226 Difference]: Without dead ends: 150 [2025-01-10 02:39:14,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1060 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=830, Invalid=3202, Unknown=0, NotChecked=0, Total=4032 [2025-01-10 02:39:14,991 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 240 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 02:39:14,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 366 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 02:39:14,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2025-01-10 02:39:15,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 140. [2025-01-10 02:39:15,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 101 states have (on average 1.118811881188119) internal successors, (113), 102 states have internal predecessors, (113), 36 states have call successors, (36), 13 states have call predecessors, (36), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-01-10 02:39:15,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 173 transitions. [2025-01-10 02:39:15,006 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 173 transitions. Word has length 102 [2025-01-10 02:39:15,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:39:15,006 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 173 transitions. [2025-01-10 02:39:15,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 24 states have internal predecessors, (79), 12 states have call successors, (35), 12 states have call predecessors, (35), 1 states have return successors, (24), 12 states have call predecessors, (24), 12 states have call successors, (24) [2025-01-10 02:39:15,006 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 173 transitions. [2025-01-10 02:39:15,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2025-01-10 02:39:15,008 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:39:15,008 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:39:15,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-10 02:39:15,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-01-10 02:39:15,210 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-01-10 02:39:15,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:39:15,210 INFO L85 PathProgramCache]: Analyzing trace with hash 414222489, now seen corresponding path program 3 times [2025-01-10 02:39:15,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:39:15,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703082434] [2025-01-10 02:39:15,210 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 02:39:15,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:39:15,224 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 204 statements into 13 equivalence classes. [2025-01-10 02:39:15,448 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) and asserted 204 of 204 statements. [2025-01-10 02:39:15,448 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2025-01-10 02:39:15,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:16,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 33 proven. 93 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2025-01-10 02:39:16,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:39:16,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703082434] [2025-01-10 02:39:16,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703082434] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:39:16,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643385110] [2025-01-10 02:39:16,233 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 02:39:16,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:39:16,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:39:16,237 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:39:16,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-10 02:39:16,309 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 204 statements into 13 equivalence classes. [2025-01-10 02:39:16,411 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) and asserted 204 of 204 statements. [2025-01-10 02:39:16,412 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2025-01-10 02:39:16,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:39:16,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-01-10 02:39:16,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:39:16,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 957 trivial. 0 not checked. [2025-01-10 02:39:16,581 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:39:16,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 957 trivial. 0 not checked. [2025-01-10 02:39:16,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643385110] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:39:16,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:39:16,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 21 [2025-01-10 02:39:16,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068667967] [2025-01-10 02:39:16,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:39:16,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-01-10 02:39:16,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:39:16,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-01-10 02:39:16,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2025-01-10 02:39:16,802 INFO L87 Difference]: Start difference. First operand 140 states and 173 transitions. Second operand has 22 states, 20 states have (on average 3.2) internal successors, (64), 19 states have internal predecessors, (64), 11 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2025-01-10 02:39:17,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:39:17,139 INFO L93 Difference]: Finished difference Result 281 states and 348 transitions. [2025-01-10 02:39:17,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-01-10 02:39:17,140 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.2) internal successors, (64), 19 states have internal predecessors, (64), 11 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) Word has length 204 [2025-01-10 02:39:17,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:39:17,141 INFO L225 Difference]: With dead ends: 281 [2025-01-10 02:39:17,141 INFO L226 Difference]: Without dead ends: 0 [2025-01-10 02:39:17,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=253, Invalid=1153, Unknown=0, NotChecked=0, Total=1406 [2025-01-10 02:39:17,143 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 56 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:39:17,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 212 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:39:17,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-10 02:39:17,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-10 02:39:17,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 02:39:17,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-10 02:39:17,144 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 204 [2025-01-10 02:39:17,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:39:17,144 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 02:39:17,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.2) internal successors, (64), 19 states have internal predecessors, (64), 11 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2025-01-10 02:39:17,144 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-10 02:39:17,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-10 02:39:17,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2025-01-10 02:39:17,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2025-01-10 02:39:17,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2025-01-10 02:39:17,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2025-01-10 02:39:17,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2025-01-10 02:39:17,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location checkErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2025-01-10 02:39:17,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-10 02:39:17,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:39:17,351 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:39:17,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-10 02:39:20,285 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 02:39:20,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:39:20 BoogieIcfgContainer [2025-01-10 02:39:20,291 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 02:39:20,292 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 02:39:20,292 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 02:39:20,292 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 02:39:20,293 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:39:09" (3/4) ... [2025-01-10 02:39:20,294 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 02:39:20,299 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-01-10 02:39:20,299 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2025-01-10 02:39:20,299 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-01-10 02:39:20,303 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2025-01-10 02:39:20,304 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-10 02:39:20,304 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-01-10 02:39:20,305 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-10 02:39:20,368 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 02:39:20,369 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 02:39:20,369 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 02:39:20,369 INFO L158 Benchmark]: Toolchain (without parser) took 10952.84ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 106.1MB in the beginning and 302.2MB in the end (delta: -196.1MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. [2025-01-10 02:39:20,369 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory was 126.8MB in the beginning and 126.5MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 02:39:20,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 165.36ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 94.4MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 02:39:20,371 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.01ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 93.5MB in the end (delta: 895.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 02:39:20,371 INFO L158 Benchmark]: Boogie Preprocessor took 36.21ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 91.6MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 02:39:20,371 INFO L158 Benchmark]: RCFGBuilder took 290.91ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 78.5MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 02:39:20,372 INFO L158 Benchmark]: TraceAbstraction took 10358.31ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 77.5MB in the beginning and 310.5MB in the end (delta: -233.0MB). Peak memory consumption was 203.3MB. Max. memory is 16.1GB. [2025-01-10 02:39:20,372 INFO L158 Benchmark]: Witness Printer took 76.90ms. Allocated memory is still 402.7MB. Free memory was 310.5MB in the beginning and 302.2MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 02:39:20,374 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory was 126.8MB in the beginning and 126.5MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 165.36ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 94.4MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.01ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 93.5MB in the end (delta: 895.0kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.21ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 91.6MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 290.91ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 78.5MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10358.31ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 77.5MB in the beginning and 310.5MB in the end (delta: -233.0MB). Peak memory consumption was 203.3MB. Max. memory is 16.1GB. * Witness Printer took 76.90ms. Allocated memory is still 402.7MB. Free memory was 310.5MB in the beginning and 302.2MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 10, TraceHistogramMax: 13, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 519 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 518 mSDsluCounter, 1815 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1512 mSDsCounter, 113 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 948 IncrementalHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 113 mSolverCounterUnsat, 303 mSDtfsCounter, 948 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1063 GetRequests, 867 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1576 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred in iteration=9, InterpolantAutomatonStates: 132, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 22 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1078 NumberOfCodeBlocks, 1078 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 1464 ConstructedInterpolants, 0 QuantifiedInterpolants, 2808 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1817 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 21 InterpolantComputations, 6 PerfectInterpolantSequences, 3492/4013 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 02:39:20,390 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