./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d2d6f9be66d27a1c9d3b3eaba0ccd86a9e6d263d5b40883199c2e280efc7ebbe --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 20:37:55,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 20:37:55,187 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 20:37:55,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 20:37:55,192 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 20:37:55,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 20:37:55,223 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 20:37:55,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 20:37:55,224 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 20:37:55,224 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 20:37:55,225 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 20:37:55,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 20:37:55,225 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 20:37:55,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 20:37:55,226 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 20:37:55,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 20:37:55,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 20:37:55,226 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 20:37:55,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 20:37:55,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 20:37:55,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 20:37:55,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 20:37:55,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 20:37:55,227 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 20:37:55,227 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 20:37:55,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 20:37:55,227 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 20:37:55,227 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 20:37:55,227 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 20:37:55,228 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 20:37:55,228 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 20:37:55,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 20:37:55,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 20:37:55,228 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 20:37:55,229 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 20:37:55,229 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 20:37:55,229 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 20:37:55,229 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 20:37:55,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 20:37:55,229 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 20:37:55,229 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 20:37:55,229 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 20:37:55,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 20:37:55,230 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> d2d6f9be66d27a1c9d3b3eaba0ccd86a9e6d263d5b40883199c2e280efc7ebbe [2025-02-07 20:37:55,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 20:37:55,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 20:37:55,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 20:37:55,521 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 20:37:55,521 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 20:37:55,523 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound2.c [2025-02-07 20:37:56,850 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cf0e4cd9c/841355a2692d404193049d9db1224856/FLAG7b4357de1 [2025-02-07 20:37:57,088 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 20:37:57,089 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound2.c [2025-02-07 20:37:57,095 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cf0e4cd9c/841355a2692d404193049d9db1224856/FLAG7b4357de1 [2025-02-07 20:37:57,109 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cf0e4cd9c/841355a2692d404193049d9db1224856 [2025-02-07 20:37:57,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 20:37:57,113 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 20:37:57,114 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 20:37:57,114 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 20:37:57,118 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 20:37:57,118 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 08:37:57" (1/1) ... [2025-02-07 20:37:57,119 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bb0ff8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:37:57, skipping insertion in model container [2025-02-07 20:37:57,119 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 08:37:57" (1/1) ... [2025-02-07 20:37:57,132 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 20:37:57,278 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound2.c[709,722] [2025-02-07 20:37:57,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 20:37:57,321 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 20:37:57,330 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound2.c[709,722] [2025-02-07 20:37:57,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 20:37:57,358 INFO L204 MainTranslator]: Completed translation [2025-02-07 20:37:57,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:37:57 WrapperNode [2025-02-07 20:37:57,360 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 20:37:57,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 20:37:57,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 20:37:57,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 20:37:57,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:37:57" (1/1) ... [2025-02-07 20:37:57,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:37:57" (1/1) ... [2025-02-07 20:37:57,396 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2025-02-07 20:37:57,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 20:37:57,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 20:37:57,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 20:37:57,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 20:37:57,407 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:37:57" (1/1) ... [2025-02-07 20:37:57,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:37:57" (1/1) ... [2025-02-07 20:37:57,409 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:37:57" (1/1) ... [2025-02-07 20:37:57,424 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]. [2025-02-07 20:37:57,425 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:37:57" (1/1) ... [2025-02-07 20:37:57,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:37:57" (1/1) ... [2025-02-07 20:37:57,430 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:37:57" (1/1) ... [2025-02-07 20:37:57,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:37:57" (1/1) ... [2025-02-07 20:37:57,435 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:37:57" (1/1) ... [2025-02-07 20:37:57,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:37:57" (1/1) ... [2025-02-07 20:37:57,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 20:37:57,441 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 20:37:57,442 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 20:37:57,442 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 20:37:57,442 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:37:57" (1/1) ... [2025-02-07 20:37:57,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 20:37:57,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 20:37:57,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 20:37:57,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 20:37:57,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 20:37:57,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 20:37:57,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 20:37:57,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 20:37:57,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-07 20:37:57,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-07 20:37:57,556 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 20:37:57,558 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 20:37:57,725 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-02-07 20:37:57,726 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 20:37:57,735 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 20:37:57,736 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 20:37:57,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 08:37:57 BoogieIcfgContainer [2025-02-07 20:37:57,737 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 20:37:57,739 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 20:37:57,739 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 20:37:57,744 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 20:37:57,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 08:37:57" (1/3) ... [2025-02-07 20:37:57,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ecd584c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 08:37:57, skipping insertion in model container [2025-02-07 20:37:57,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:37:57" (2/3) ... [2025-02-07 20:37:57,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ecd584c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 08:37:57, skipping insertion in model container [2025-02-07 20:37:57,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 08:37:57" (3/3) ... [2025-02-07 20:37:57,749 INFO L128 eAbstractionObserver]: Analyzing ICFG freire2_valuebound2.c [2025-02-07 20:37:57,763 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 20:37:57,765 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG freire2_valuebound2.c that has 2 procedures, 20 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-07 20:37:57,822 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 20:37:57,834 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;@6390c3d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 20:37:57,836 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 20:37:57,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 20:37:57,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-07 20:37:57,846 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 20:37:57,847 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 20:37:57,848 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 20:37:57,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 20:37:57,854 INFO L85 PathProgramCache]: Analyzing trace with hash 231229136, now seen corresponding path program 1 times [2025-02-07 20:37:57,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 20:37:57,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186691130] [2025-02-07 20:37:57,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 20:37:57,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 20:37:57,927 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-07 20:37:57,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-07 20:37:57,942 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 20:37:57,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 20:37:57,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 20:37:57,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 20:37:57,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186691130] [2025-02-07 20:37:57,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186691130] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 20:37:57,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 20:37:57,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 20:37:57,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366342218] [2025-02-07 20:37:57,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 20:37:58,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 20:37:58,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 20:37:58,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 20:37:58,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 20:37:58,027 INFO L87 Difference]: Start difference. First operand has 20 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 20:37:58,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 20:37:58,045 INFO L93 Difference]: Finished difference Result 38 states and 59 transitions. [2025-02-07 20:37:58,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 20:37:58,049 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-07 20:37:58,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 20:37:58,055 INFO L225 Difference]: With dead ends: 38 [2025-02-07 20:37:58,055 INFO L226 Difference]: Without dead ends: 17 [2025-02-07 20:37:58,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 20:37:58,062 INFO L435 NwaCegarLoop]: 25 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, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-07 20:37:58,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 20:37:58,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2025-02-07 20:37:58,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2025-02-07 20:37:58,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-07 20:37:58,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2025-02-07 20:37:58,104 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 8 [2025-02-07 20:37:58,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 20:37:58,104 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2025-02-07 20:37:58,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 20:37:58,104 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2025-02-07 20:37:58,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-07 20:37:58,105 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 20:37:58,105 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 20:37:58,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 20:37:58,105 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 20:37:58,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 20:37:58,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1118732817, now seen corresponding path program 1 times [2025-02-07 20:37:58,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 20:37:58,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778679262] [2025-02-07 20:37:58,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 20:37:58,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 20:37:58,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-07 20:37:58,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-07 20:37:58,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 20:37:58,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-07 20:37:58,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [874879230] [2025-02-07 20:37:58,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 20:37:58,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 20:37:58,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 20:37:58,149 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-07 20:37:58,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-07 20:37:58,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-07 20:37:58,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-07 20:37:58,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 20:37:58,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 20:37:58,210 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 20:37:58,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-07 20:37:58,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-07 20:37:58,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 20:37:58,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 20:37:58,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 20:37:58,236 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 20:37:58,238 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 20:37:58,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-07 20:37:58,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 20:37:58,447 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 20:37:58,462 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 20:37:58,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 08:37:58 BoogieIcfgContainer [2025-02-07 20:37:58,466 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 20:37:58,467 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 20:37:58,467 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 20:37:58,467 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 20:37:58,468 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 08:37:57" (3/4) ... [2025-02-07 20:37:58,470 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 20:37:58,471 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 20:37:58,471 INFO L158 Benchmark]: Toolchain (without parser) took 1358.39ms. Allocated memory is still 201.3MB. Free memory was 159.4MB in the beginning and 110.2MB in the end (delta: 49.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-07 20:37:58,472 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 20:37:58,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.96ms. Allocated memory is still 201.3MB. Free memory was 159.4MB in the beginning and 148.0MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 20:37:58,472 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.88ms. Allocated memory is still 201.3MB. Free memory was 148.0MB in the beginning and 146.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 20:37:58,472 INFO L158 Benchmark]: Boogie Preprocessor took 42.48ms. Allocated memory is still 201.3MB. Free memory was 146.5MB in the beginning and 145.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 20:37:58,473 INFO L158 Benchmark]: IcfgBuilder took 295.73ms. Allocated memory is still 201.3MB. Free memory was 145.5MB in the beginning and 134.0MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 20:37:58,473 INFO L158 Benchmark]: TraceAbstraction took 726.60ms. Allocated memory is still 201.3MB. Free memory was 133.3MB in the beginning and 110.2MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-07 20:37:58,473 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 201.3MB. Free memory is still 110.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 20:37:58,475 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.96ms. Allocated memory is still 201.3MB. Free memory was 159.4MB in the beginning and 148.0MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.88ms. Allocated memory is still 201.3MB. Free memory was 148.0MB in the beginning and 146.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.48ms. Allocated memory is still 201.3MB. Free memory was 146.5MB in the beginning and 145.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 295.73ms. Allocated memory is still 201.3MB. Free memory was 145.5MB in the beginning and 134.0MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 726.60ms. Allocated memory is still 201.3MB. Free memory was 133.3MB in the beginning and 110.2MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 201.3MB. Free memory is still 110.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of to_int at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 28. Possible FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L28] CALL assume_abort_if_not(a>=0 && a<=2) [L14] COND FALSE !(!cond) [L28] RET assume_abort_if_not(a>=0 && a<=2) [L29] x = a [L30] s = 3.25 [L31] r = 1 VAL [r=1] [L33] COND TRUE 1 VAL [r=1] [L34] CALL __VERIFIER_assert((int)(4*s) - 12*r*r == 1) VAL [\old(cond)=0] [L17] COND TRUE !(cond) VAL [\old(cond)=0] [L19] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-07 20:37:58,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d2d6f9be66d27a1c9d3b3eaba0ccd86a9e6d263d5b40883199c2e280efc7ebbe --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 20:38:00,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 20:38:00,927 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-07 20:38:00,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 20:38:00,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 20:38:00,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 20:38:00,966 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 20:38:00,966 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 20:38:00,966 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 20:38:00,967 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 20:38:00,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 20:38:00,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 20:38:00,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 20:38:00,968 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 20:38:00,969 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 20:38:00,969 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 20:38:00,969 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 20:38:00,969 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 20:38:00,969 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 20:38:00,970 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 20:38:00,970 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 20:38:00,970 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 20:38:00,970 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 20:38:00,970 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 20:38:00,970 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 20:38:00,971 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 20:38:00,971 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 20:38:00,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 20:38:00,971 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 20:38:00,971 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 20:38:00,972 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 20:38:00,972 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 20:38:00,972 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 20:38:00,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 20:38:00,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 20:38:00,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 20:38:00,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 20:38:00,972 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 20:38:00,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 20:38:00,972 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 20:38:00,972 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 20:38:00,973 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 20:38:00,973 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 20:38:00,973 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 20:38:00,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 20:38:00,973 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> d2d6f9be66d27a1c9d3b3eaba0ccd86a9e6d263d5b40883199c2e280efc7ebbe [2025-02-07 20:38:01,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 20:38:01,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 20:38:01,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 20:38:01,266 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 20:38:01,266 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 20:38:01,267 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound2.c [2025-02-07 20:38:02,603 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/da55129aa/982d51a6da7f4bd3a65adce4edae4910/FLAGb1bfc13c1 [2025-02-07 20:38:02,837 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 20:38:02,837 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound2.c [2025-02-07 20:38:02,845 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/da55129aa/982d51a6da7f4bd3a65adce4edae4910/FLAGb1bfc13c1 [2025-02-07 20:38:03,202 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/da55129aa/982d51a6da7f4bd3a65adce4edae4910 [2025-02-07 20:38:03,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 20:38:03,207 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 20:38:03,210 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 20:38:03,210 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 20:38:03,214 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 20:38:03,215 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 08:38:03" (1/1) ... [2025-02-07 20:38:03,216 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60e8b925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:38:03, skipping insertion in model container [2025-02-07 20:38:03,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 08:38:03" (1/1) ... [2025-02-07 20:38:03,231 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 20:38:03,381 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound2.c[709,722] [2025-02-07 20:38:03,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 20:38:03,433 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 20:38:03,443 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound2.c[709,722] [2025-02-07 20:38:03,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 20:38:03,467 INFO L204 MainTranslator]: Completed translation [2025-02-07 20:38:03,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:38:03 WrapperNode [2025-02-07 20:38:03,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 20:38:03,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 20:38:03,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 20:38:03,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 20:38:03,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:38:03" (1/1) ... [2025-02-07 20:38:03,487 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:38:03" (1/1) ... [2025-02-07 20:38:03,509 INFO L138 Inliner]: procedures = 15, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2025-02-07 20:38:03,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 20:38:03,512 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 20:38:03,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 20:38:03,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 20:38:03,520 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:38:03" (1/1) ... [2025-02-07 20:38:03,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:38:03" (1/1) ... [2025-02-07 20:38:03,525 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:38:03" (1/1) ... [2025-02-07 20:38:03,540 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]. [2025-02-07 20:38:03,543 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:38:03" (1/1) ... [2025-02-07 20:38:03,544 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:38:03" (1/1) ... [2025-02-07 20:38:03,555 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:38:03" (1/1) ... [2025-02-07 20:38:03,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:38:03" (1/1) ... [2025-02-07 20:38:03,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:38:03" (1/1) ... [2025-02-07 20:38:03,558 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:38:03" (1/1) ... [2025-02-07 20:38:03,562 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 20:38:03,563 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 20:38:03,563 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 20:38:03,563 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 20:38:03,564 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:38:03" (1/1) ... [2025-02-07 20:38:03,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 20:38:03,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 20:38:03,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 20:38:03,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 20:38:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 20:38:03,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 20:38:03,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 20:38:03,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 20:38:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-07 20:38:03,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-07 20:38:03,691 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 20:38:03,694 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 20:38:08,010 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-02-07 20:38:08,010 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 20:38:08,020 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 20:38:08,020 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 20:38:08,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 08:38:08 BoogieIcfgContainer [2025-02-07 20:38:08,021 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 20:38:08,023 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 20:38:08,023 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 20:38:08,027 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 20:38:08,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 08:38:03" (1/3) ... [2025-02-07 20:38:08,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44194c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 08:38:08, skipping insertion in model container [2025-02-07 20:38:08,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:38:03" (2/3) ... [2025-02-07 20:38:08,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44194c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 08:38:08, skipping insertion in model container [2025-02-07 20:38:08,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 08:38:08" (3/3) ... [2025-02-07 20:38:08,029 INFO L128 eAbstractionObserver]: Analyzing ICFG freire2_valuebound2.c [2025-02-07 20:38:08,041 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 20:38:08,043 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG freire2_valuebound2.c that has 2 procedures, 20 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-07 20:38:08,088 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 20:38:08,097 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;@3a425772, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 20:38:08,097 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 20:38:08,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 20:38:08,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-07 20:38:08,108 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 20:38:08,109 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 20:38:08,109 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 20:38:08,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 20:38:08,114 INFO L85 PathProgramCache]: Analyzing trace with hash 231229136, now seen corresponding path program 1 times [2025-02-07 20:38:08,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 20:38:08,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462980584] [2025-02-07 20:38:08,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 20:38:08,122 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 20:38:08,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 20:38:08,125 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-07 20:38:08,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-02-07 20:38:08,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-07 20:38:08,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-07 20:38:08,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 20:38:08,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 20:38:08,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-07 20:38:08,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 20:38:08,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 20:38:08,257 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 20:38:08,257 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 20:38:08,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462980584] [2025-02-07 20:38:08,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462980584] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 20:38:08,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 20:38:08,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 20:38:08,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481250687] [2025-02-07 20:38:08,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 20:38:08,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 20:38:08,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 20:38:08,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 20:38:08,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 20:38:08,279 INFO L87 Difference]: Start difference. First operand has 20 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 20:38:08,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 20:38:08,295 INFO L93 Difference]: Finished difference Result 38 states and 59 transitions. [2025-02-07 20:38:08,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 20:38:08,296 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-07 20:38:08,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 20:38:08,302 INFO L225 Difference]: With dead ends: 38 [2025-02-07 20:38:08,302 INFO L226 Difference]: Without dead ends: 17 [2025-02-07 20:38:08,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 20:38:08,309 INFO L435 NwaCegarLoop]: 25 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, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-07 20:38:08,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 20:38:08,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2025-02-07 20:38:08,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2025-02-07 20:38:08,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-07 20:38:08,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2025-02-07 20:38:08,340 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 8 [2025-02-07 20:38:08,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 20:38:08,340 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2025-02-07 20:38:08,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 20:38:08,340 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2025-02-07 20:38:08,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-07 20:38:08,341 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 20:38:08,341 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 20:38:08,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-02-07 20:38:08,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 20:38:08,542 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 20:38:08,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 20:38:08,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1118732817, now seen corresponding path program 1 times [2025-02-07 20:38:08,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 20:38:08,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2009118176] [2025-02-07 20:38:08,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 20:38:08,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 20:38:08,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 20:38:08,547 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-07 20:38:08,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-02-07 20:38:08,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-07 20:38:08,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-07 20:38:08,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 20:38:08,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 20:38:08,652 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 20:38:08,660 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-07 20:38:08,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-07 20:38:08,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 20:38:08,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 20:38:08,729 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2025-02-07 20:38:08,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1066399303] [2025-02-07 20:38:08,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 20:38:08,730 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-07 20:38:08,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-07 20:38:08,752 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-07 20:38:08,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2025-02-07 20:38:08,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-07 20:38:08,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-07 20:38:08,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 20:38:08,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 20:38:08,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-07 20:38:08,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 20:38:09,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 20:38:09,131 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 20:38:09,131 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 20:38:09,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2009118176] [2025-02-07 20:38:09,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-07 20:38:09,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1066399303] [2025-02-07 20:38:09,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1066399303] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 20:38:09,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 20:38:09,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-07 20:38:09,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652329639] [2025-02-07 20:38:09,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 20:38:09,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-07 20:38:09,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 20:38:09,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-07 20:38:09,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-07 20:38:09,133 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 20:38:13,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:38:15,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:38:20,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:38:21,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:38:26,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:38:30,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:38:34,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:38:38,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:38:42,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:38:46,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:38:48,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:38:54,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:38:58,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:39:02,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.34s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:39:06,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:39:09,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:39:13,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:39:17,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:39:21,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:39:25,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:39:29,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:39:33,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 20:39:38,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers []