./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound20.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 28cfabe4b70eff8f7baaccb87c67f08c79dbf056ceeb2a0d56109f4b60f10f62 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 10:51:26,198 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 10:51:26,272 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 10:51:26,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 10:51:26,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 10:51:26,312 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 10:51:26,313 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 10:51:26,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 10:51:26,315 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 10:51:26,316 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 10:51:26,317 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 10:51:26,317 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 10:51:26,318 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 10:51:26,319 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 10:51:26,320 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 10:51:26,320 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 10:51:26,320 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 10:51:26,321 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 10:51:26,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 10:51:26,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 10:51:26,324 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 10:51:26,324 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 10:51:26,324 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 10:51:26,325 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 10:51:26,325 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 10:51:26,325 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 10:51:26,325 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 10:51:26,325 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 10:51:26,326 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 10:51:26,326 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 10:51:26,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 10:51:26,326 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 10:51:26,326 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 10:51:26,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 10:51:26,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 10:51:26,328 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 10:51:26,329 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 10:51:26,329 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 10:51:26,330 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 10:51:26,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 10:51:26,330 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 10:51:26,331 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 10:51:26,331 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 10:51:26,331 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 10:51:26,332 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28cfabe4b70eff8f7baaccb87c67f08c79dbf056ceeb2a0d56109f4b60f10f62 [2024-11-19 10:51:26,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 10:51:26,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 10:51:26,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 10:51:26,601 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 10:51:26,602 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 10:51:26,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound20.c [2024-11-19 10:51:28,032 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 10:51:28,205 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 10:51:28,206 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound20.c [2024-11-19 10:51:28,213 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8affcc597/deb8eae7bd504732947126cf7eb90a06/FLAG21bc1f4d9 [2024-11-19 10:51:28,226 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8affcc597/deb8eae7bd504732947126cf7eb90a06 [2024-11-19 10:51:28,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 10:51:28,229 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 10:51:28,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 10:51:28,232 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 10:51:28,238 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 10:51:28,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:51:28" (1/1) ... [2024-11-19 10:51:28,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a340f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:28, skipping insertion in model container [2024-11-19 10:51:28,242 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:51:28" (1/1) ... [2024-11-19 10:51:28,264 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 10:51:28,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 10:51:28,449 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 10:51:28,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 10:51:28,480 INFO L204 MainTranslator]: Completed translation [2024-11-19 10:51:28,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:28 WrapperNode [2024-11-19 10:51:28,480 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 10:51:28,481 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 10:51:28,481 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 10:51:28,482 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 10:51:28,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:28" (1/1) ... [2024-11-19 10:51:28,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:28" (1/1) ... [2024-11-19 10:51:28,513 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2024-11-19 10:51:28,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 10:51:28,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 10:51:28,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 10:51:28,515 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 10:51:28,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:28" (1/1) ... [2024-11-19 10:51:28,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:28" (1/1) ... [2024-11-19 10:51:28,527 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:28" (1/1) ... [2024-11-19 10:51:28,542 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 10:51:28,543 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:28" (1/1) ... [2024-11-19 10:51:28,543 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:28" (1/1) ... [2024-11-19 10:51:28,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:28" (1/1) ... [2024-11-19 10:51:28,549 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:28" (1/1) ... [2024-11-19 10:51:28,550 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:28" (1/1) ... [2024-11-19 10:51:28,551 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:28" (1/1) ... [2024-11-19 10:51:28,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 10:51:28,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 10:51:28,557 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 10:51:28,557 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 10:51:28,558 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:28" (1/1) ... [2024-11-19 10:51:28,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 10:51:28,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:51:28,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 10:51:28,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 10:51:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 10:51:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 10:51:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 10:51:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 10:51:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 10:51:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 10:51:28,719 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 10:51:28,722 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 10:51:28,951 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-19 10:51:28,951 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 10:51:28,966 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 10:51:28,967 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 10:51:28,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:51:28 BoogieIcfgContainer [2024-11-19 10:51:28,968 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 10:51:28,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 10:51:28,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 10:51:28,975 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 10:51:28,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:51:28" (1/3) ... [2024-11-19 10:51:28,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb54396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:51:28, skipping insertion in model container [2024-11-19 10:51:28,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:51:28" (2/3) ... [2024-11-19 10:51:28,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb54396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:51:28, skipping insertion in model container [2024-11-19 10:51:28,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:51:28" (3/3) ... [2024-11-19 10:51:29,001 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-u_unwindbound20.c [2024-11-19 10:51:29,019 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 10:51:29,020 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-19 10:51:29,079 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 10:51:29,085 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;@33a01bad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 10:51:29,086 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-19 10:51:29,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 23 states have (on average 1.565217391304348) internal successors, (36), 27 states have internal predecessors, (36), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-19 10:51:29,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-19 10:51:29,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:51:29,098 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 10:51:29,098 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-19 10:51:29,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:51:29,104 INFO L85 PathProgramCache]: Analyzing trace with hash 889508776, now seen corresponding path program 1 times [2024-11-19 10:51:29,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:51:29,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756403624] [2024-11-19 10:51:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:51:29,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:51:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:51:29,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:51:29,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:51:29,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756403624] [2024-11-19 10:51:29,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756403624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:51:29,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:51:29,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 10:51:29,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543587223] [2024-11-19 10:51:29,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:51:29,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 10:51:29,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:51:29,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 10:51:29,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 10:51:29,315 INFO L87 Difference]: Start difference. First operand has 36 states, 23 states have (on average 1.565217391304348) internal successors, (36), 27 states have internal predecessors, (36), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 10:51:29,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:51:29,332 INFO L93 Difference]: Finished difference Result 68 states and 102 transitions. [2024-11-19 10:51:29,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 10:51:29,334 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) Word has length 6 [2024-11-19 10:51:29,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:51:29,340 INFO L225 Difference]: With dead ends: 68 [2024-11-19 10:51:29,340 INFO L226 Difference]: Without dead ends: 28 [2024-11-19 10:51:29,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 10:51:29,345 INFO L432 NwaCegarLoop]: 45 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, 45 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 [2024-11-19 10:51:29,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:51:29,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-19 10:51:29,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-19 10:51:29,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-19 10:51:29,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2024-11-19 10:51:29,382 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 6 [2024-11-19 10:51:29,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:51:29,382 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2024-11-19 10:51:29,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 10:51:29,383 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-11-19 10:51:29,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-19 10:51:29,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:51:29,384 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 10:51:29,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 10:51:29,385 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-19 10:51:29,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:51:29,386 INFO L85 PathProgramCache]: Analyzing trace with hash 889568358, now seen corresponding path program 1 times [2024-11-19 10:51:29,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:51:29,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860732139] [2024-11-19 10:51:29,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:51:29,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:51:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:51:29,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:51:29,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:51:29,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860732139] [2024-11-19 10:51:29,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860732139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:51:29,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:51:29,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 10:51:29,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914538964] [2024-11-19 10:51:29,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:51:29,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:51:29,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:51:29,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:51:29,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:51:29,538 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 10:51:29,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:51:29,630 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2024-11-19 10:51:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 10:51:29,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2024-11-19 10:51:29,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:51:29,633 INFO L225 Difference]: With dead ends: 37 [2024-11-19 10:51:29,633 INFO L226 Difference]: Without dead ends: 36 [2024-11-19 10:51:29,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:51:29,634 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 22 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:51:29,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 67 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:51:29,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-19 10:51:29,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2024-11-19 10:51:29,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 23 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-19 10:51:29,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2024-11-19 10:51:29,644 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 6 [2024-11-19 10:51:29,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:51:29,645 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2024-11-19 10:51:29,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 10:51:29,645 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2024-11-19 10:51:29,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-19 10:51:29,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:51:29,646 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:51:29,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 10:51:29,646 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-19 10:51:29,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:51:29,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815370, now seen corresponding path program 1 times [2024-11-19 10:51:29,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:51:29,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681159338] [2024-11-19 10:51:29,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:51:29,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:51:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:51:29,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:51:29,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:51:29,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681159338] [2024-11-19 10:51:29,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681159338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:51:29,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:51:29,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 10:51:29,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621240062] [2024-11-19 10:51:29,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:51:29,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:51:29,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:51:29,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:51:29,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:51:29,717 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 10:51:29,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:51:29,753 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2024-11-19 10:51:29,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:51:29,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2024-11-19 10:51:29,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:51:29,755 INFO L225 Difference]: With dead ends: 50 [2024-11-19 10:51:29,755 INFO L226 Difference]: Without dead ends: 35 [2024-11-19 10:51:29,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:51:29,758 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 3 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:51:29,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 82 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:51:29,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-19 10:51:29,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-19 10:51:29,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.24) internal successors, (31), 27 states have internal predecessors, (31), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-19 10:51:29,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2024-11-19 10:51:29,765 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 7 [2024-11-19 10:51:29,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:51:29,765 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2024-11-19 10:51:29,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 10:51:29,766 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2024-11-19 10:51:29,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-19 10:51:29,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:51:29,767 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:51:29,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 10:51:29,767 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-19 10:51:29,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:51:29,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1297109879, now seen corresponding path program 1 times [2024-11-19 10:51:29,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:51:29,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930886321] [2024-11-19 10:51:29,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:51:29,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:51:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:51:29,922 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 10:51:29,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:51:29,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930886321] [2024-11-19 10:51:29,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930886321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:51:29,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:51:29,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 10:51:29,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464998591] [2024-11-19 10:51:29,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:51:29,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 10:51:29,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:51:29,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 10:51:29,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 10:51:29,928 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-19 10:51:29,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:51:29,999 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2024-11-19 10:51:30,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 10:51:30,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2024-11-19 10:51:30,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:51:30,001 INFO L225 Difference]: With dead ends: 35 [2024-11-19 10:51:30,002 INFO L226 Difference]: Without dead ends: 34 [2024-11-19 10:51:30,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-19 10:51:30,003 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 27 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:51:30,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 67 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:51:30,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-19 10:51:30,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-19 10:51:30,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-19 10:51:30,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2024-11-19 10:51:30,014 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 26 [2024-11-19 10:51:30,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:51:30,014 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2024-11-19 10:51:30,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-19 10:51:30,014 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2024-11-19 10:51:30,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-19 10:51:30,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:51:30,017 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:51:30,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 10:51:30,018 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-19 10:51:30,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:51:30,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1555700513, now seen corresponding path program 1 times [2024-11-19 10:51:30,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:51:30,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226221971] [2024-11-19 10:51:30,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:51:30,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:51:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:51:30,151 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 10:51:30,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:51:30,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226221971] [2024-11-19 10:51:30,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226221971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:51:30,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:51:30,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 10:51:30,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414679609] [2024-11-19 10:51:30,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:51:30,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 10:51:30,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:51:30,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 10:51:30,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 10:51:30,154 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-19 10:51:30,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:51:30,259 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2024-11-19 10:51:30,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 10:51:30,259 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-11-19 10:51:30,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:51:30,260 INFO L225 Difference]: With dead ends: 51 [2024-11-19 10:51:30,261 INFO L226 Difference]: Without dead ends: 50 [2024-11-19 10:51:30,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-19 10:51:30,262 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 16 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:51:30,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 110 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:51:30,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-19 10:51:30,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2024-11-19 10:51:30,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 32 states have (on average 1.1875) internal successors, (38), 33 states have internal predecessors, (38), 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) [2024-11-19 10:51:30,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2024-11-19 10:51:30,272 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 27 [2024-11-19 10:51:30,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:51:30,272 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2024-11-19 10:51:30,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-19 10:51:30,273 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2024-11-19 10:51:30,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-19 10:51:30,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:51:30,274 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:51:30,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 10:51:30,274 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-19 10:51:30,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:51:30,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1555664763, now seen corresponding path program 1 times [2024-11-19 10:51:30,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:51:30,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67595493] [2024-11-19 10:51:30,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:51:30,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:51:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:51:30,391 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 10:51:30,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:51:30,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67595493] [2024-11-19 10:51:30,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67595493] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:51:30,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851194472] [2024-11-19 10:51:30,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:51:30,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:51:30,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:51:30,395 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:51:30,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 10:51:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:51:30,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 10:51:30,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:51:30,583 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 10:51:30,583 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:51:30,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851194472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:51:30,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:51:30,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-19 10:51:30,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923270581] [2024-11-19 10:51:30,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:51:30,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 10:51:30,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:51:30,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 10:51:30,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 10:51:30,586 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-19 10:51:30,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:51:30,642 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2024-11-19 10:51:30,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:51:30,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-11-19 10:51:30,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:51:30,644 INFO L225 Difference]: With dead ends: 49 [2024-11-19 10:51:30,644 INFO L226 Difference]: Without dead ends: 48 [2024-11-19 10:51:30,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-19 10:51:30,645 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 11 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:51:30,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 84 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:51:30,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-19 10:51:30,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2024-11-19 10:51:30,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 32 states have (on average 1.15625) internal successors, (37), 32 states have internal predecessors, (37), 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) [2024-11-19 10:51:30,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2024-11-19 10:51:30,654 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 27 [2024-11-19 10:51:30,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:51:30,654 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2024-11-19 10:51:30,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-19 10:51:30,655 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2024-11-19 10:51:30,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-19 10:51:30,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:51:30,656 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:51:30,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 10:51:30,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-19 10:51:30,861 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-19 10:51:30,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:51:30,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1040655112, now seen corresponding path program 1 times [2024-11-19 10:51:30,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:51:30,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348851846] [2024-11-19 10:51:30,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:51:30,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:51:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:51:30,958 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 10:51:30,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:51:30,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348851846] [2024-11-19 10:51:30,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348851846] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:51:30,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615620827] [2024-11-19 10:51:30,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:51:30,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:51:30,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:51:30,961 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:51:30,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 10:51:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:51:31,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 10:51:31,011 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:51:31,065 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 10:51:31,067 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:51:31,151 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 10:51:31,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615620827] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:51:31,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:51:31,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 10 [2024-11-19 10:51:31,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883717091] [2024-11-19 10:51:31,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:51:31,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 10:51:31,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:51:31,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 10:51:31,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-19 10:51:31,154 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 10:51:31,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:51:31,344 INFO L93 Difference]: Finished difference Result 93 states and 113 transitions. [2024-11-19 10:51:31,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 10:51:31,345 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 31 [2024-11-19 10:51:31,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:51:31,346 INFO L225 Difference]: With dead ends: 93 [2024-11-19 10:51:31,346 INFO L226 Difference]: Without dead ends: 80 [2024-11-19 10:51:31,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-11-19 10:51:31,348 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 40 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:51:31,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 177 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:51:31,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-19 10:51:31,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 72. [2024-11-19 10:51:31,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 52 states have (on average 1.1346153846153846) internal successors, (59), 52 states have internal predecessors, (59), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-19 10:51:31,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 87 transitions. [2024-11-19 10:51:31,359 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 87 transitions. Word has length 31 [2024-11-19 10:51:31,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:51:31,360 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 87 transitions. [2024-11-19 10:51:31,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 10:51:31,360 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 87 transitions. [2024-11-19 10:51:31,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-19 10:51:31,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:51:31,362 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:51:31,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 10:51:31,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-19 10:51:31,566 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-19 10:51:31,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:51:31,567 INFO L85 PathProgramCache]: Analyzing trace with hash 182070449, now seen corresponding path program 1 times [2024-11-19 10:51:31,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:51:31,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465760584] [2024-11-19 10:51:31,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:51:31,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:51:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:51:31,728 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 10:51:31,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:51:31,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465760584] [2024-11-19 10:51:31,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465760584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:51:31,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817571772] [2024-11-19 10:51:31,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:51:31,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:51:31,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:51:31,735 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:51:31,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 10:51:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:51:31,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 10:51:31,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:51:31,943 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-19 10:51:31,944 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:51:32,085 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 10:51:32,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817571772] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:51:32,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:51:32,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2024-11-19 10:51:32,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292857137] [2024-11-19 10:51:32,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:51:32,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 10:51:32,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:51:32,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 10:51:32,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-11-19 10:51:32,089 INFO L87 Difference]: Start difference. First operand 72 states and 87 transitions. Second operand has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-19 10:51:32,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:51:32,489 INFO L93 Difference]: Finished difference Result 133 states and 162 transitions. [2024-11-19 10:51:32,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-19 10:51:32,490 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 43 [2024-11-19 10:51:32,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:51:32,492 INFO L225 Difference]: With dead ends: 133 [2024-11-19 10:51:32,492 INFO L226 Difference]: Without dead ends: 132 [2024-11-19 10:51:32,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2024-11-19 10:51:32,493 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 134 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:51:32,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 171 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:51:32,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-19 10:51:32,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-11-19 10:51:32,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 97 states have (on average 1.1237113402061856) internal successors, (109), 97 states have internal predecessors, (109), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-19 10:51:32,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 157 transitions. [2024-11-19 10:51:32,510 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 157 transitions. Word has length 43 [2024-11-19 10:51:32,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:51:32,510 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 157 transitions. [2024-11-19 10:51:32,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-19 10:51:32,511 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 157 transitions. [2024-11-19 10:51:32,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-19 10:51:32,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:51:32,514 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:51:32,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 10:51:32,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:51:32,719 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-19 10:51:32,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:51:32,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1955862377, now seen corresponding path program 2 times [2024-11-19 10:51:32,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:51:32,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036384150] [2024-11-19 10:51:32,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:51:32,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:51:32,747 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:51:32,750 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:51:33,086 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 10:51:33,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:51:33,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036384150] [2024-11-19 10:51:33,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036384150] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:51:33,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506102758] [2024-11-19 10:51:33,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:51:33,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:51:33,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:51:33,093 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:51:33,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 10:51:33,164 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:51:33,165 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:51:33,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 10:51:33,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:51:33,470 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 12 proven. 268 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-19 10:51:33,470 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:51:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 12 proven. 52 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 10:51:33,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506102758] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:51:33,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:51:33,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 36 [2024-11-19 10:51:33,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301799466] [2024-11-19 10:51:33,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:51:33,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-19 10:51:33,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:51:33,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-19 10:51:33,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2024-11-19 10:51:33,824 INFO L87 Difference]: Start difference. First operand 132 states and 157 transitions. Second operand has 37 states, 36 states have (on average 2.8333333333333335) internal successors, (102), 37 states have internal predecessors, (102), 12 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2024-11-19 10:51:34,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:51:34,370 INFO L93 Difference]: Finished difference Result 234 states and 278 transitions. [2024-11-19 10:51:34,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-19 10:51:34,371 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.8333333333333335) internal successors, (102), 37 states have internal predecessors, (102), 12 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 91 [2024-11-19 10:51:34,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:51:34,373 INFO L225 Difference]: With dead ends: 234 [2024-11-19 10:51:34,373 INFO L226 Difference]: Without dead ends: 221 [2024-11-19 10:51:34,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=906, Invalid=2516, Unknown=0, NotChecked=0, Total=3422 [2024-11-19 10:51:34,379 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 218 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:51:34,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 242 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:51:34,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-19 10:51:34,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 144. [2024-11-19 10:51:34,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 105 states have (on average 1.1238095238095238) internal successors, (118), 105 states have internal predecessors, (118), 27 states have call successors, (27), 11 states have call predecessors, (27), 11 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-19 10:51:34,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 172 transitions. [2024-11-19 10:51:34,402 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 172 transitions. Word has length 91 [2024-11-19 10:51:34,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:51:34,403 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 172 transitions. [2024-11-19 10:51:34,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.8333333333333335) internal successors, (102), 37 states have internal predecessors, (102), 12 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2024-11-19 10:51:34,403 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 172 transitions. [2024-11-19 10:51:34,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-19 10:51:34,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:51:34,407 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:51:34,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 10:51:34,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:51:34,608 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-19 10:51:34,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:51:34,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1533400926, now seen corresponding path program 1 times [2024-11-19 10:51:34,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:51:34,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042135834] [2024-11-19 10:51:34,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:51:34,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:51:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:51:34,972 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 10:51:34,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:51:34,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042135834] [2024-11-19 10:51:34,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042135834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:51:34,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319452065] [2024-11-19 10:51:34,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:51:34,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:51:34,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:51:34,975 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:51:34,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 10:51:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:51:35,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 10:51:35,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:51:35,367 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 3 proven. 389 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 10:51:35,367 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:51:35,788 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 3 proven. 65 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-19 10:51:35,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319452065] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:51:35,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:51:35,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 41 [2024-11-19 10:51:35,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999880101] [2024-11-19 10:51:35,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:51:35,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-19 10:51:35,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:51:35,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-19 10:51:35,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=1344, Unknown=0, NotChecked=0, Total=1722 [2024-11-19 10:51:35,792 INFO L87 Difference]: Start difference. First operand 144 states and 172 transitions. Second operand has 42 states, 41 states have (on average 3.3658536585365852) internal successors, (138), 42 states have internal predecessors, (138), 18 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 18 states have call predecessors, (42), 18 states have call successors, (42) [2024-11-19 10:51:36,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:51:36,878 INFO L93 Difference]: Finished difference Result 370 states and 444 transitions. [2024-11-19 10:51:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-19 10:51:36,879 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.3658536585365852) internal successors, (138), 42 states have internal predecessors, (138), 18 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 18 states have call predecessors, (42), 18 states have call successors, (42) Word has length 111 [2024-11-19 10:51:36,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:51:36,883 INFO L225 Difference]: With dead ends: 370 [2024-11-19 10:51:36,885 INFO L226 Difference]: Without dead ends: 369 [2024-11-19 10:51:36,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1206 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1659, Invalid=4661, Unknown=0, NotChecked=0, Total=6320 [2024-11-19 10:51:36,889 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 293 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 10:51:36,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 246 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 10:51:36,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-19 10:51:36,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 252. [2024-11-19 10:51:36,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 186 states have (on average 1.118279569892473) internal successors, (208), 186 states have internal predecessors, (208), 45 states have call successors, (45), 20 states have call predecessors, (45), 20 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-19 10:51:36,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 298 transitions. [2024-11-19 10:51:36,931 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 298 transitions. Word has length 111 [2024-11-19 10:51:36,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:51:36,931 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 298 transitions. [2024-11-19 10:51:36,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.3658536585365852) internal successors, (138), 42 states have internal predecessors, (138), 18 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 18 states have call predecessors, (42), 18 states have call successors, (42) [2024-11-19 10:51:36,932 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 298 transitions. [2024-11-19 10:51:36,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-19 10:51:36,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:51:36,942 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2024-11-19 10:51:36,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 10:51:37,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-19 10:51:37,143 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-19 10:51:37,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:51:37,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1354925193, now seen corresponding path program 2 times [2024-11-19 10:51:37,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:51:37,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118586186] [2024-11-19 10:51:37,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:51:37,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:51:37,181 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:51:37,181 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:51:37,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2038 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 1963 trivial. 0 not checked. [2024-11-19 10:51:37,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:51:37,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118586186] [2024-11-19 10:51:37,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118586186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:51:37,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:51:37,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 10:51:37,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184735223] [2024-11-19 10:51:37,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:51:37,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 10:51:37,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:51:37,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 10:51:37,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:51:37,414 INFO L87 Difference]: Start difference. First operand 252 states and 298 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-19 10:51:37,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:51:37,464 INFO L93 Difference]: Finished difference Result 256 states and 302 transitions. [2024-11-19 10:51:37,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 10:51:37,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 227 [2024-11-19 10:51:37,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:51:37,466 INFO L225 Difference]: With dead ends: 256 [2024-11-19 10:51:37,466 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 10:51:37,467 INFO L431 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 [2024-11-19 10:51:37,468 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 14 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:51:37,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 97 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:51:37,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 10:51:37,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 10:51:37,469 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) [2024-11-19 10:51:37,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 10:51:37,469 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 227 [2024-11-19 10:51:37,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:51:37,470 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 10:51:37,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-19 10:51:37,470 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 10:51:37,470 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 10:51:37,472 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-19 10:51:37,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-19 10:51:37,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-19 10:51:37,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-19 10:51:37,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 10:51:37,476 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:51:37,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-19 10:51:37,929 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 10:51:37,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:51:37 BoogieIcfgContainer [2024-11-19 10:51:37,947 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 10:51:37,948 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 10:51:37,948 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 10:51:37,948 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 10:51:37,949 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:51:28" (3/4) ... [2024-11-19 10:51:37,951 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 10:51:37,955 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-19 10:51:37,960 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-19 10:51:37,961 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-19 10:51:37,961 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 10:51:37,962 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 10:51:38,062 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 10:51:38,062 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 10:51:38,062 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 10:51:38,063 INFO L158 Benchmark]: Toolchain (without parser) took 9834.01ms. Allocated memory was 159.4MB in the beginning and 276.8MB in the end (delta: 117.4MB). Free memory was 86.9MB in the beginning and 214.2MB in the end (delta: -127.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 10:51:38,063 INFO L158 Benchmark]: CDTParser took 1.26ms. Allocated memory is still 159.4MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 10:51:38,063 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.76ms. Allocated memory is still 159.4MB. Free memory was 86.7MB in the beginning and 74.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 10:51:38,064 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.62ms. Allocated memory is still 159.4MB. Free memory was 74.1MB in the beginning and 72.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 10:51:38,064 INFO L158 Benchmark]: Boogie Preprocessor took 40.65ms. Allocated memory is still 159.4MB. Free memory was 72.4MB in the beginning and 70.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 10:51:38,064 INFO L158 Benchmark]: RCFGBuilder took 412.24ms. Allocated memory is still 159.4MB. Free memory was 70.6MB in the beginning and 128.1MB in the end (delta: -57.4MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2024-11-19 10:51:38,064 INFO L158 Benchmark]: TraceAbstraction took 8976.05ms. Allocated memory was 159.4MB in the beginning and 276.8MB in the end (delta: 117.4MB). Free memory was 127.4MB in the beginning and 218.4MB in the end (delta: -91.0MB). Peak memory consumption was 163.4MB. Max. memory is 16.1GB. [2024-11-19 10:51:38,064 INFO L158 Benchmark]: Witness Printer took 114.46ms. Allocated memory is still 276.8MB. Free memory was 218.4MB in the beginning and 214.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 10:51:38,066 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26ms. Allocated memory is still 159.4MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.76ms. Allocated memory is still 159.4MB. Free memory was 86.7MB in the beginning and 74.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.62ms. Allocated memory is still 159.4MB. Free memory was 74.1MB in the beginning and 72.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.65ms. Allocated memory is still 159.4MB. Free memory was 72.4MB in the beginning and 70.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 412.24ms. Allocated memory is still 159.4MB. Free memory was 70.6MB in the beginning and 128.1MB in the end (delta: -57.4MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8976.05ms. Allocated memory was 159.4MB in the beginning and 276.8MB in the end (delta: 117.4MB). Free memory was 127.4MB in the beginning and 218.4MB in the end (delta: -91.0MB). Peak memory consumption was 163.4MB. Max. memory is 16.1GB. * Witness Printer took 114.46ms. Allocated memory is still 276.8MB. Free memory was 218.4MB in the beginning and 214.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: 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 2 procedures, 36 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 11, TraceHistogramMax: 29, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 778 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 778 mSDsluCounter, 1388 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1083 mSDsCounter, 123 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 882 IncrementalHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 123 mSolverCounterUnsat, 305 mSDtfsCounter, 882 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 731 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2020 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=10, InterpolantAutomatonStates: 171, 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, 11 MinimizatonAttempts, 216 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 905 NumberOfCodeBlocks, 905 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1161 ConstructedInterpolants, 0 QuantifiedInterpolants, 2347 SizeOfPredicates, 27 NumberOfNonLiveVariables, 732 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 20 InterpolantComputations, 7 PerfectInterpolantSequences, 3595/4549 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((1 <= counter) && (counter <= 20)) || (counter == 0)) - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: ((1 <= counter) && (counter <= 21)) - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (counter == \old(counter)) RESULT: Ultimate proved your program to be correct! [2024-11-19 10:51:38,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE