./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d 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/loop-zilu/benchmark52_polynomial.i -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 30423d130febadd361f3e4a853592861e7b12a17e365ee39eab7e3a86989589e --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 11:29:51,100 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 11:29:51,161 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 11:29:51,166 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 11:29:51,167 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 11:29:51,184 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 11:29:51,185 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 11:29:51,185 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 11:29:51,186 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 11:29:51,186 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 11:29:51,186 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 11:29:51,187 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 11:29:51,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 11:29:51,187 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 11:29:51,188 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 11:29:51,188 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 11:29:51,190 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 11:29:51,190 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 11:29:51,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 11:29:51,193 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 11:29:51,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 11:29:51,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 11:29:51,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 11:29:51,194 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 11:29:51,194 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 11:29:51,194 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 11:29:51,194 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 11:29:51,194 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 11:29:51,195 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 11:29:51,195 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 11:29:51,195 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 11:29:51,195 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 11:29:51,195 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 11:29:51,195 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 11:29:51,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:29:51,196 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 11:29:51,196 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 11:29:51,196 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 11:29:51,196 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 11:29:51,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 11:29:51,197 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 11:29:51,199 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 11:29:51,199 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 11:29:51,200 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 11:29:51,200 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30423d130febadd361f3e4a853592861e7b12a17e365ee39eab7e3a86989589e [2024-11-09 11:29:51,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 11:29:51,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 11:29:51,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 11:29:51,519 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 11:29:51,519 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 11:29:51,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i [2024-11-09 11:29:52,952 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 11:29:53,132 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 11:29:53,133 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i [2024-11-09 11:29:53,138 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a13f4113/5d19004b3a9e42899c0dc033c0a22d98/FLAG81f0fd776 [2024-11-09 11:29:53,517 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a13f4113/5d19004b3a9e42899c0dc033c0a22d98 [2024-11-09 11:29:53,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 11:29:53,520 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 11:29:53,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 11:29:53,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 11:29:53,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 11:29:53,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:29:53" (1/1) ... [2024-11-09 11:29:53,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@295c9b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:29:53, skipping insertion in model container [2024-11-09 11:29:53,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:29:53" (1/1) ... [2024-11-09 11:29:53,558 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 11:29:53,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:29:53,741 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 11:29:53,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:29:53,791 INFO L204 MainTranslator]: Completed translation [2024-11-09 11:29:53,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:29:53 WrapperNode [2024-11-09 11:29:53,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 11:29:53,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 11:29:53,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 11:29:53,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 11:29:53,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:29:53" (1/1) ... [2024-11-09 11:29:53,804 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:29:53" (1/1) ... [2024-11-09 11:29:53,817 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 32 [2024-11-09 11:29:53,817 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 11:29:53,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 11:29:53,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 11:29:53,818 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 11:29:53,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:29:53" (1/1) ... [2024-11-09 11:29:53,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:29:53" (1/1) ... [2024-11-09 11:29:53,826 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:29:53" (1/1) ... [2024-11-09 11:29:53,838 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]. [2024-11-09 11:29:53,838 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:29:53" (1/1) ... [2024-11-09 11:29:53,839 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:29:53" (1/1) ... [2024-11-09 11:29:53,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:29:53" (1/1) ... [2024-11-09 11:29:53,844 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:29:53" (1/1) ... [2024-11-09 11:29:53,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:29:53" (1/1) ... [2024-11-09 11:29:53,847 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:29:53" (1/1) ... [2024-11-09 11:29:53,848 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 11:29:53,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 11:29:53,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 11:29:53,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 11:29:53,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:29:53" (1/1) ... [2024-11-09 11:29:53,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:29:53,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:29:53,878 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) [2024-11-09 11:29:53,882 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 [2024-11-09 11:29:53,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 11:29:53,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 11:29:53,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 11:29:53,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 11:29:53,972 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 11:29:53,973 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 11:29:54,058 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 11:29:54,058 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 11:29:54,079 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 11:29:54,080 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 11:29:54,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:29:54 BoogieIcfgContainer [2024-11-09 11:29:54,081 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 11:29:54,087 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 11:29:54,087 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 11:29:54,094 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 11:29:54,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:29:53" (1/3) ... [2024-11-09 11:29:54,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545cbc7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:29:54, skipping insertion in model container [2024-11-09 11:29:54,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:29:53" (2/3) ... [2024-11-09 11:29:54,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545cbc7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:29:54, skipping insertion in model container [2024-11-09 11:29:54,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:29:54" (3/3) ... [2024-11-09 11:29:54,096 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark52_polynomial.i [2024-11-09 11:29:54,127 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 11:29:54,131 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 11:29:54,235 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 11:29:54,247 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;@5ea37aea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 11:29:54,248 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 11:29:54,257 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.6) internal successors, (24), 19 states have internal predecessors, (24), 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) [2024-11-09 11:29:54,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 11:29:54,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:29:54,263 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 11:29:54,264 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)] === [2024-11-09 11:29:54,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:29:54,269 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2024-11-09 11:29:54,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:29:54,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877716701] [2024-11-09 11:29:54,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:29:54,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:29:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:29:54,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:29:54,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:29:54,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877716701] [2024-11-09 11:29:54,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877716701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:29:54,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:29:54,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 11:29:54,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646147637] [2024-11-09 11:29:54,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:29:54,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 11:29:54,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:29:54,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 11:29:54,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 11:29:54,401 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.6) internal successors, (24), 19 states have internal predecessors, (24), 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) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-11-09 11:29:54,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:29:54,411 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-11-09 11:29:54,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 11:29:54,415 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2024-11-09 11:29:54,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:29:54,420 INFO L225 Difference]: With dead ends: 27 [2024-11-09 11:29:54,420 INFO L226 Difference]: Without dead ends: 11 [2024-11-09 11:29:54,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 11:29:54,426 INFO L432 NwaCegarLoop]: 19 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, 19 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 [2024-11-09 11:29:54,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:29:54,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-11-09 11:29:54,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-09 11:29:54,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 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) [2024-11-09 11:29:54,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-11-09 11:29:54,451 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 4 [2024-11-09 11:29:54,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:29:54,452 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2024-11-09 11:29:54,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-11-09 11:29:54,452 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-11-09 11:29:54,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 11:29:54,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:29:54,454 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 11:29:54,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 11:29:54,454 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:29:54,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:29:54,455 INFO L85 PathProgramCache]: Analyzing trace with hash 28695877, now seen corresponding path program 1 times [2024-11-09 11:29:54,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:29:54,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644398150] [2024-11-09 11:29:54,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:29:54,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:29:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 11:29:54,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [80708869] [2024-11-09 11:29:54,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:29:54,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:29:54,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:29:54,477 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) [2024-11-09 11:29:54,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 11:29:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:29:54,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 11:29:54,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:29:54,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:29:54,562 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:29:54,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:29:54,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644398150] [2024-11-09 11:29:54,564 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 11:29:54,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80708869] [2024-11-09 11:29:54,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80708869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:29:54,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:29:54,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 11:29:54,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689779662] [2024-11-09 11:29:54,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:29:54,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 11:29:54,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:29:54,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 11:29:54,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 11:29:54,571 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-09 11:29:54,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:29:54,604 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-09 11:29:54,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 11:29:54,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2024-11-09 11:29:54,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:29:54,604 INFO L225 Difference]: With dead ends: 15 [2024-11-09 11:29:54,605 INFO L226 Difference]: Without dead ends: 12 [2024-11-09 11:29:54,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 11:29:54,606 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:29:54,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:29:54,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-09 11:29:54,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2024-11-09 11:29:54,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2024-11-09 11:29:54,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-11-09 11:29:54,614 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 5 [2024-11-09 11:29:54,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:29:54,615 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2024-11-09 11:29:54,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-09 11:29:54,616 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-11-09 11:29:54,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 11:29:54,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:29:54,617 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:29:54,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 11:29:54,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:29:54,819 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)] === [2024-11-09 11:29:54,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:29:54,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1594077297, now seen corresponding path program 1 times [2024-11-09 11:29:54,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:29:54,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965889549] [2024-11-09 11:29:54,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:29:54,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:29:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 11:29:54,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [533523019] [2024-11-09 11:29:54,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:29:54,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:29:54,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:29:54,866 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) [2024-11-09 11:29:54,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 11:29:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:29:54,900 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 11:29:54,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:29:54,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:29:54,962 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:29:55,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:29:55,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:29:55,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965889549] [2024-11-09 11:29:55,046 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 11:29:55,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533523019] [2024-11-09 11:29:55,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533523019] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:29:55,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 11:29:55,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-09 11:29:55,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280849218] [2024-11-09 11:29:55,047 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 11:29:55,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 11:29:55,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:29:55,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 11:29:55,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:29:55,049 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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) [2024-11-09 11:29:55,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:29:55,093 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2024-11-09 11:29:55,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 11:29:55,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 10 [2024-11-09 11:29:55,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:29:55,093 INFO L225 Difference]: With dead ends: 14 [2024-11-09 11:29:55,094 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 11:29:55,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-09 11:29:55,095 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:29:55,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:29:55,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 11:29:55,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 11:29:55,096 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) [2024-11-09 11:29:55,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 11:29:55,096 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2024-11-09 11:29:55,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:29:55,097 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 11:29:55,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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) [2024-11-09 11:29:55,097 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 11:29:55,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 11:29:55,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-09 11:29:55,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-09 11:29:55,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-09 11:29:55,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-09 11:29:55,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 11:29:55,301 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,SelfDestructingSolverStorable2 [2024-11-09 11:29:55,304 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-09 11:29:55,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 11:29:55,323 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 11:29:55,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:29:55 BoogieIcfgContainer [2024-11-09 11:29:55,353 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 11:29:55,354 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 11:29:55,354 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 11:29:55,354 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 11:29:55,354 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:29:54" (3/4) ... [2024-11-09 11:29:55,356 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 11:29:55,361 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-09 11:29:55,361 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 11:29:55,361 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 11:29:55,361 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 11:29:55,444 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 11:29:55,444 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 11:29:55,444 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 11:29:55,445 INFO L158 Benchmark]: Toolchain (without parser) took 1924.65ms. Allocated memory was 148.9MB in the beginning and 224.4MB in the end (delta: 75.5MB). Free memory was 78.1MB in the beginning and 190.6MB in the end (delta: -112.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 11:29:55,445 INFO L158 Benchmark]: CDTParser took 4.84ms. Allocated memory is still 148.9MB. Free memory is still 100.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 11:29:55,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.85ms. Allocated memory was 148.9MB in the beginning and 224.4MB in the end (delta: 75.5MB). Free memory was 77.9MB in the beginning and 196.6MB in the end (delta: -118.7MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2024-11-09 11:29:55,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.62ms. Allocated memory is still 224.4MB. Free memory was 196.6MB in the beginning and 195.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 11:29:55,446 INFO L158 Benchmark]: Boogie Preprocessor took 30.46ms. Allocated memory is still 224.4MB. Free memory was 195.5MB in the beginning and 193.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 11:29:55,446 INFO L158 Benchmark]: RCFGBuilder took 231.71ms. Allocated memory is still 224.4MB. Free memory was 193.4MB in the beginning and 181.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 11:29:55,446 INFO L158 Benchmark]: TraceAbstraction took 1266.69ms. Allocated memory is still 224.4MB. Free memory was 181.9MB in the beginning and 195.5MB in the end (delta: -13.6MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-11-09 11:29:55,446 INFO L158 Benchmark]: Witness Printer took 90.69ms. Allocated memory is still 224.4MB. Free memory was 195.5MB in the beginning and 190.6MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 11:29:55,450 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.84ms. Allocated memory is still 148.9MB. Free memory is still 100.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.85ms. Allocated memory was 148.9MB in the beginning and 224.4MB in the end (delta: 75.5MB). Free memory was 77.9MB in the beginning and 196.6MB in the end (delta: -118.7MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.62ms. Allocated memory is still 224.4MB. Free memory was 196.6MB in the beginning and 195.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.46ms. Allocated memory is still 224.4MB. Free memory was 195.5MB in the beginning and 193.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 231.71ms. Allocated memory is still 224.4MB. Free memory was 193.4MB in the beginning and 181.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1266.69ms. Allocated memory is still 224.4MB. Free memory was 181.9MB in the beginning and 195.5MB in the end (delta: -13.6MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Witness Printer took 90.69ms. Allocated memory is still 224.4MB. Free memory was 195.5MB in the beginning and 190.6MB in the end (delta: 4.8MB). 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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 1 procedures, 20 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 26 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 145 SizeOfPredicates, 1 NumberOfNonLiveVariables, 53 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 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: 22]: Loop Invariant Derived loop invariant: (((i <= 10) && (0 <= ((long long) i + 8))) || ((0 <= ((long long) 9 + i)) && (i <= 9))) RESULT: Ultimate proved your program to be correct! [2024-11-09 11:29:55,475 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