./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c6b05ef27bc57afa4e7776361d8c320f2c4d1efbfc422ad92c7a9c3c2e549e04 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 18:52:51,755 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 18:52:51,828 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 18:52:51,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 18:52:51,832 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 18:52:51,862 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 18:52:51,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 18:52:51,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 18:52:51,864 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 18:52:51,866 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 18:52:51,866 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 18:52:51,867 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 18:52:51,867 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 18:52:51,867 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 18:52:51,870 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 18:52:51,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 18:52:51,871 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 18:52:51,872 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 18:52:51,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 18:52:51,872 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 18:52:51,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 18:52:51,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 18:52:51,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 18:52:51,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 18:52:51,874 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 18:52:51,874 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 18:52:51,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 18:52:51,875 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 18:52:51,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 18:52:51,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 18:52:51,875 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 18:52:51,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 18:52:51,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 18:52:51,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 18:52:51,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 18:52:51,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 18:52:51,877 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 18:52:51,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 18:52:51,877 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 18:52:51,877 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 18:52:51,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 18:52:51,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 18:52:51,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6b05ef27bc57afa4e7776361d8c320f2c4d1efbfc422ad92c7a9c3c2e549e04 [2024-10-12 18:52:52,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 18:52:52,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 18:52:52,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 18:52:52,133 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 18:52:52,134 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 18:52:52,135 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c [2024-10-12 18:52:53,643 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 18:52:53,847 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 18:52:53,848 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c [2024-10-12 18:52:53,859 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bc5981af/024889c866484689b5fa8844a5200712/FLAG99a2ab32c [2024-10-12 18:52:53,877 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bc5981af/024889c866484689b5fa8844a5200712 [2024-10-12 18:52:53,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 18:52:53,881 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 18:52:53,884 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 18:52:53,885 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 18:52:53,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 18:52:53,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:52:53" (1/1) ... [2024-10-12 18:52:53,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ff8075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:53, skipping insertion in model container [2024-10-12 18:52:53,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:52:53" (1/1) ... [2024-10-12 18:52:53,916 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 18:52:54,101 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c[535,548] [2024-10-12 18:52:54,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 18:52:54,130 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 18:52:54,146 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c[535,548] [2024-10-12 18:52:54,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 18:52:54,184 INFO L204 MainTranslator]: Completed translation [2024-10-12 18:52:54,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:54 WrapperNode [2024-10-12 18:52:54,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 18:52:54,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 18:52:54,186 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 18:52:54,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 18:52:54,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:54" (1/1) ... [2024-10-12 18:52:54,200 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:54" (1/1) ... [2024-10-12 18:52:54,225 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2024-10-12 18:52:54,225 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 18:52:54,226 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 18:52:54,226 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 18:52:54,226 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 18:52:54,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:54" (1/1) ... [2024-10-12 18:52:54,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:54" (1/1) ... [2024-10-12 18:52:54,236 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:54" (1/1) ... [2024-10-12 18:52:54,247 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 18:52:54,248 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:54" (1/1) ... [2024-10-12 18:52:54,248 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:54" (1/1) ... [2024-10-12 18:52:54,251 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:54" (1/1) ... [2024-10-12 18:52:54,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:54" (1/1) ... [2024-10-12 18:52:54,262 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:54" (1/1) ... [2024-10-12 18:52:54,263 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:54" (1/1) ... [2024-10-12 18:52:54,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 18:52:54,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 18:52:54,269 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 18:52:54,269 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 18:52:54,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:54" (1/1) ... [2024-10-12 18:52:54,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 18:52:54,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 18:52:54,304 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) [2024-10-12 18:52:54,314 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 [2024-10-12 18:52:54,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 18:52:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-12 18:52:54,359 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-12 18:52:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 18:52:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 18:52:54,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 18:52:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-12 18:52:54,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-12 18:52:54,416 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 18:52:54,418 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 18:52:54,615 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-10-12 18:52:54,616 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 18:52:54,648 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 18:52:54,648 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-12 18:52:54,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:52:54 BoogieIcfgContainer [2024-10-12 18:52:54,649 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 18:52:54,651 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 18:52:54,651 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 18:52:54,656 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 18:52:54,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:52:53" (1/3) ... [2024-10-12 18:52:54,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244ff6e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:52:54, skipping insertion in model container [2024-10-12 18:52:54,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:52:54" (2/3) ... [2024-10-12 18:52:54,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244ff6e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:52:54, skipping insertion in model container [2024-10-12 18:52:54,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:52:54" (3/3) ... [2024-10-12 18:52:54,660 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat1-ll_valuebound10.c [2024-10-12 18:52:54,678 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 18:52:54,679 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 18:52:54,744 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 18:52:54,750 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;@6b4bbb3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 18:52:54,751 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 18:52:54,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 18 states have internal predecessors, (29), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-12 18:52:54,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-12 18:52:54,762 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:52:54,763 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:52:54,763 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 18:52:54,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:52:54,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1294213950, now seen corresponding path program 1 times [2024-10-12 18:52:54,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:52:54,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109135437] [2024-10-12 18:52:54,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:52:54,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:52:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:52:54,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 18:52:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:52:54,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 18:52:54,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:52:54,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 18:52:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:52:55,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-12 18:52:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:52:55,028 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 18:52:55,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:52:55,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109135437] [2024-10-12 18:52:55,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109135437] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:52:55,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:52:55,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 18:52:55,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429014779] [2024-10-12 18:52:55,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:52:55,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 18:52:55,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:52:55,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 18:52:55,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 18:52:55,065 INFO L87 Difference]: Start difference. First operand has 29 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 18 states have internal predecessors, (29), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-12 18:52:55,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:52:55,096 INFO L93 Difference]: Finished difference Result 56 states and 95 transitions. [2024-10-12 18:52:55,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 18:52:55,098 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2024-10-12 18:52:55,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:52:55,105 INFO L225 Difference]: With dead ends: 56 [2024-10-12 18:52:55,105 INFO L226 Difference]: Without dead ends: 27 [2024-10-12 18:52:55,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 18:52:55,112 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 18:52:55,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 18:52:55,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-10-12 18:52:55,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-10-12 18:52:55,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-12 18:52:55,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2024-10-12 18:52:55,144 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 28 [2024-10-12 18:52:55,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:52:55,144 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2024-10-12 18:52:55,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-12 18:52:55,145 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2024-10-12 18:52:55,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-12 18:52:55,147 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:52:55,147 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:52:55,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 18:52:55,148 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 18:52:55,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:52:55,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1121299334, now seen corresponding path program 1 times [2024-10-12 18:52:55,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:52:55,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894879921] [2024-10-12 18:52:55,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:52:55,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:52:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-12 18:52:55,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1965834249] [2024-10-12 18:52:55,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:52:55,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 18:52:55,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 18:52:55,218 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) [2024-10-12 18:52:55,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 18:52:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:52:55,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-12 18:52:55,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 18:52:55,623 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 18:52:55,624 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 18:52:55,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:52:55,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894879921] [2024-10-12 18:52:55,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-12 18:52:55,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965834249] [2024-10-12 18:52:55,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965834249] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:52:55,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:52:55,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 18:52:55,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875288536] [2024-10-12 18:52:55,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:52:55,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 18:52:55,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:52:55,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 18:52:55,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 18:52:55,629 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-12 18:52:57,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:52:57,695 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2024-10-12 18:52:57,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 18:52:57,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2024-10-12 18:52:57,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:52:57,697 INFO L225 Difference]: With dead ends: 42 [2024-10-12 18:52:57,697 INFO L226 Difference]: Without dead ends: 40 [2024-10-12 18:52:57,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 18:52:57,699 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 8 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-12 18:52:57,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 90 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-12 18:52:57,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-10-12 18:52:57,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-10-12 18:52:57,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-12 18:52:57,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 53 transitions. [2024-10-12 18:52:57,719 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 53 transitions. Word has length 28 [2024-10-12 18:52:57,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:52:57,720 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 53 transitions. [2024-10-12 18:52:57,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-12 18:52:57,720 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 53 transitions. [2024-10-12 18:52:57,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-12 18:52:57,722 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:52:57,722 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:52:57,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-12 18:52:57,926 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 [2024-10-12 18:52:57,927 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 18:52:57,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:52:57,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1015308453, now seen corresponding path program 1 times [2024-10-12 18:52:57,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:52:57,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076053427] [2024-10-12 18:52:57,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:52:57,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:52:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:52:58,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 18:52:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:52:58,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 18:52:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:52:58,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 18:52:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:52:58,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-12 18:52:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:52:58,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-12 18:52:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:52:58,313 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 18:52:58,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:52:58,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076053427] [2024-10-12 18:52:58,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076053427] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 18:52:58,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88009290] [2024-10-12 18:52:58,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:52:58,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 18:52:58,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 18:52:58,317 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) [2024-10-12 18:52:58,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 18:52:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:52:58,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-12 18:52:58,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 18:52:58,421 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 18:52:58,421 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 18:52:58,542 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 18:52:58,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88009290] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 18:52:58,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 18:52:58,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 11 [2024-10-12 18:52:58,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504422236] [2024-10-12 18:52:58,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 18:52:58,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-12 18:52:58,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:52:58,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-12 18:52:58,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-10-12 18:52:58,547 INFO L87 Difference]: Start difference. First operand 40 states and 53 transitions. Second operand has 11 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-12 18:52:58,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:52:58,681 INFO L93 Difference]: Finished difference Result 40 states and 53 transitions. [2024-10-12 18:52:58,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 18:52:58,683 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 34 [2024-10-12 18:52:58,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:52:58,684 INFO L225 Difference]: With dead ends: 40 [2024-10-12 18:52:58,684 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 18:52:58,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 73 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-10-12 18:52:58,685 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:52:58,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 134 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:52:58,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 18:52:58,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 18:52:58,689 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) [2024-10-12 18:52:58,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 18:52:58,690 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2024-10-12 18:52:58,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:52:58,690 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 18:52:58,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-12 18:52:58,691 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 18:52:58,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 18:52:58,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 18:52:58,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-12 18:52:58,900 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 [2024-10-12 18:52:58,903 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-12 18:52:58,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 18:52:59,025 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 18:52:59,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 06:52:59 BoogieIcfgContainer [2024-10-12 18:52:59,059 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 18:52:59,060 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 18:52:59,060 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 18:52:59,060 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 18:52:59,060 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:52:54" (3/4) ... [2024-10-12 18:52:59,062 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 18:52:59,065 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-12 18:52:59,066 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-10-12 18:52:59,069 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-12 18:52:59,069 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-12 18:52:59,069 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-12 18:52:59,069 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 18:52:59,156 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 18:52:59,157 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 18:52:59,157 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 18:52:59,160 INFO L158 Benchmark]: Toolchain (without parser) took 5276.40ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 56.4MB in the beginning and 59.4MB in the end (delta: -3.0MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. [2024-10-12 18:52:59,161 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 18:52:59,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.85ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 56.1MB in the beginning and 154.1MB in the end (delta: -98.0MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2024-10-12 18:52:59,161 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.68ms. Allocated memory is still 182.5MB. Free memory was 154.0MB in the beginning and 153.8MB in the end (delta: 246.4kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-12 18:52:59,161 INFO L158 Benchmark]: Boogie Preprocessor took 42.46ms. Allocated memory is still 182.5MB. Free memory was 153.8MB in the beginning and 152.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 18:52:59,162 INFO L158 Benchmark]: RCFGBuilder took 379.49ms. Allocated memory is still 182.5MB. Free memory was 152.7MB in the beginning and 139.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-12 18:52:59,162 INFO L158 Benchmark]: TraceAbstraction took 4408.28ms. Allocated memory is still 182.5MB. Free memory was 138.1MB in the beginning and 63.6MB in the end (delta: 74.5MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2024-10-12 18:52:59,162 INFO L158 Benchmark]: Witness Printer took 97.46ms. Allocated memory is still 182.5MB. Free memory was 63.6MB in the beginning and 59.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 18:52:59,164 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.85ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 56.1MB in the beginning and 154.1MB in the end (delta: -98.0MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.68ms. Allocated memory is still 182.5MB. Free memory was 154.0MB in the beginning and 153.8MB in the end (delta: 246.4kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.46ms. Allocated memory is still 182.5MB. Free memory was 153.8MB in the beginning and 152.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 379.49ms. Allocated memory is still 182.5MB. Free memory was 152.7MB in the beginning and 139.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4408.28ms. Allocated memory is still 182.5MB. Free memory was 138.1MB in the beginning and 63.6MB in the end (delta: 74.5MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. * Witness Printer took 97.46ms. Allocated memory is still 182.5MB. Free memory was 63.6MB in the beginning and 59.4MB 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: 14]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 259 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 180 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 79 mSDtfsCounter, 119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 111 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=2, InterpolantAutomatonStates: 13, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 363 SizeOfPredicates, 2 NumberOfNonLiveVariables, 165 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 123/126 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 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((((((long long) A * 4) + ((__int128) r * 4)) + ((__int128) v * v)) + ((__int128) 2 * u)) == (((__int128) 2 * v) + ((__int128) u * u))) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((long long) A * 4) + ((__int128) r * 4)) + ((__int128) v * v)) + ((__int128) 2 * u)) == (((__int128) 2 * v) + ((__int128) u * u))) - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: ((((((long long) A * 4) + ((__int128) r * 4)) + ((__int128) v * v)) + ((__int128) 2 * u)) == (((__int128) 2 * v) + ((__int128) u * u))) - ProcedureContractResult [Line: 11]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= cond) Ensures: (1 <= cond) RESULT: Ultimate proved your program to be correct! [2024-10-12 18:52:59,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE