./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/water_pid.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/water_pid.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl --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 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:21:31,156 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:21:31,288 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:21:31,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:21:31,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:21:31,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:21:31,344 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:21:31,344 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:21:31,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:21:31,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:21:31,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:21:31,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:21:31,352 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:21:31,354 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:21:31,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:21:31,355 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:21:31,355 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:21:31,356 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:21:31,356 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:21:31,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:21:31,357 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:21:31,357 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:21:31,358 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:21:31,358 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:21:31,358 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:21:31,359 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:21:31,359 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:21:31,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:21:31,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:21:31,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:21:31,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:21:31,361 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:21:31,361 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:21:31,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:21:31,362 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:21:31,362 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:21:31,362 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:21:31,362 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:21:31,363 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:21:31,363 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 [2023-11-12 02:21:31,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:21:31,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:21:31,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:21:31,716 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:21:31,717 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:21:31,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/float-benchs/water_pid.c [2023-11-12 02:21:34,801 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:21:35,069 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:21:35,070 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/sv-benchmarks/c/float-benchs/water_pid.c [2023-11-12 02:21:35,079 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/data/4d90d18e4/d4cdc5c063bf42e5af026d4d2edc7042/FLAG263742e91 [2023-11-12 02:21:35,099 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/data/4d90d18e4/d4cdc5c063bf42e5af026d4d2edc7042 [2023-11-12 02:21:35,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:21:35,109 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:21:35,112 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:21:35,112 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:21:35,118 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:21:35,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34acb2c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35, skipping insertion in model container [2023-11-12 02:21:35,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,147 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:21:35,339 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/sv-benchmarks/c/float-benchs/water_pid.c[452,465] [2023-11-12 02:21:35,361 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:21:35,372 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:21:35,384 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/sv-benchmarks/c/float-benchs/water_pid.c[452,465] [2023-11-12 02:21:35,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:21:35,407 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:21:35,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35 WrapperNode [2023-11-12 02:21:35,408 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:21:35,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:21:35,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:21:35,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:21:35,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,446 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2023-11-12 02:21:35,447 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:21:35,448 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:21:35,448 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:21:35,448 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:21:35,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,459 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,464 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,467 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,469 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,470 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,472 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:21:35,473 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:21:35,473 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:21:35,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:21:35,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:21:35,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:35,511 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:21:35,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:21:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:21:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure y [2023-11-12 02:21:35,587 INFO L138 BoogieDeclarations]: Found implementation of procedure y [2023-11-12 02:21:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:21:35,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:21:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:21:35,705 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:21:35,707 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:21:35,867 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:21:35,873 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:21:35,873 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:21:35,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:21:35 BoogieIcfgContainer [2023-11-12 02:21:35,876 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:21:35,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:21:35,879 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:21:35,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:21:35,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:21:35" (1/3) ... [2023-11-12 02:21:35,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc909aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:21:35, skipping insertion in model container [2023-11-12 02:21:35,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (2/3) ... [2023-11-12 02:21:35,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc909aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:21:35, skipping insertion in model container [2023-11-12 02:21:35,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:21:35" (3/3) ... [2023-11-12 02:21:35,886 INFO L112 eAbstractionObserver]: Analyzing ICFG water_pid.c [2023-11-12 02:21:35,907 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:21:35,907 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:21:35,960 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:21:35,967 INFO L357 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, mHoare=true, 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;@18bc06e6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:21:35,968 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:21:35,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:21:35,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:21:35,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:35,981 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:35,982 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:35,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:35,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1533419321, now seen corresponding path program 1 times [2023-11-12 02:21:35,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:35,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138655879] [2023-11-12 02:21:36,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:36,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:21:36,119 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:21:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:21:36,191 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:21:36,193 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:21:36,195 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:21:36,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:21:36,202 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 02:21:36,207 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:21:36,230 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated [2023-11-12 02:21:36,234 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated [2023-11-12 02:21:36,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:21:36 BoogieIcfgContainer [2023-11-12 02:21:36,248 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:21:36,250 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:21:36,250 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:21:36,250 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:21:36,251 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:21:35" (3/4) ... [2023-11-12 02:21:36,254 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:21:36,255 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:21:36,256 INFO L158 Benchmark]: Toolchain (without parser) took 1147.61ms. Allocated memory is still 153.1MB. Free memory was 117.7MB in the beginning and 102.0MB in the end (delta: 15.7MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-11-12 02:21:36,257 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:21:36,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.13ms. Allocated memory is still 153.1MB. Free memory was 117.7MB in the beginning and 106.4MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:21:36,259 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.13ms. Allocated memory is still 153.1MB. Free memory was 106.4MB in the beginning and 105.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:21:36,261 INFO L158 Benchmark]: Boogie Preprocessor took 24.38ms. Allocated memory is still 153.1MB. Free memory was 105.1MB in the beginning and 103.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:21:36,266 INFO L158 Benchmark]: RCFGBuilder took 402.81ms. Allocated memory is still 153.1MB. Free memory was 103.8MB in the beginning and 118.0MB in the end (delta: -14.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 02:21:36,268 INFO L158 Benchmark]: TraceAbstraction took 369.17ms. Allocated memory is still 153.1MB. Free memory was 117.5MB in the beginning and 102.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:21:36,268 INFO L158 Benchmark]: Witness Printer took 5.59ms. Allocated memory is still 153.1MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:21:36,277 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.13ms. Allocated memory is still 153.1MB. Free memory was 117.7MB in the beginning and 106.4MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.13ms. Allocated memory is still 153.1MB. Free memory was 106.4MB in the beginning and 105.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.38ms. Allocated memory is still 153.1MB. Free memory was 105.1MB in the beginning and 103.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 402.81ms. Allocated memory is still 153.1MB. Free memory was 103.8MB in the beginning and 118.0MB in the end (delta: -14.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 369.17ms. Allocated memory is still 153.1MB. Free memory was 117.5MB in the beginning and 102.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 5.59ms. Allocated memory is still 153.1MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 8]: 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 someBinaryDOUBLEComparisonOperation at line 46, overapproximation of to_real at line 31, overapproximation of someBinaryArithmeticDOUBLEoperation at line 41. Possible FailurePath: [L12] static NUM yn = 0; [L14] NUM ui = 0; [L24] NUM yi, yc; [L25] NUM K; [L26] NUM T; [L27] NUM taui; [L28] NUM taud; [L29] NUM ei, sumej, epi; [L30] int i; [L31] T = 1 [L32] taui = 1 [L33] taud = 1 [L34] K = .5 [L35] yc = .5 VAL [K=1/2, yc=1/2] [L36] CALL, EXPR y(0) VAL [\old(i)=0, \old(yn)=54, yn=54] [L18] yn += ui [L19] return yn; VAL [\old(i)=0, \old(yn)=54, \result=53, i=0, yn=53] [L36] RET, EXPR y(0) VAL [K=1/2, yc=1/2, yn=53] [L36] yi = y(0) [L37] epi = yc-yi [L38] sumej = epi [L39] i=0 VAL [K=1/2, epi=56, i=0, sumej=56, yc=1/2, yi=53, yn=53] [L39] COND TRUE i<120 VAL [K=1/2, epi=56, i=0, sumej=56, yc=1/2, yi=53, yn=53] [L40] CALL, EXPR y(i) VAL [\old(i)=0, \old(yn)=53, yn=53] [L18] yn += ui [L19] return yn; VAL [\old(i)=0, \old(yn)=53, \result=55, i=0, yn=55] [L40] RET, EXPR y(i) VAL [K=1/2, epi=56, i=0, sumej=56, yc=1/2, yi=53, yn=55] [L40] yi = y(i) [L41] ei = yc-yi [L42] sumej = sumej+ei [L43] ui = K*(ei+sumej*T/taui+taud/T*(ei-epi)) [L44] epi = ei [L46] CALL __VERIFIER_assert(epi >= -1. && epi <= 1.) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, yn=55] [L8] reach_error() VAL [\old(cond)=0, cond=0, yn=55] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 02:21:36,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/water_pid.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl --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 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:21:38,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:21:38,966 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:21:38,973 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:21:38,974 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:21:39,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:21:39,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:21:39,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:21:39,012 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:21:39,017 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:21:39,018 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:21:39,018 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:21:39,019 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:21:39,021 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:21:39,022 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:21:39,022 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:21:39,022 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:21:39,023 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:21:39,023 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:21:39,024 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:21:39,024 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:21:39,025 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:21:39,025 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:21:39,026 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:21:39,026 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:21:39,027 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:21:39,027 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:21:39,028 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:21:39,028 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:21:39,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:21:39,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:21:39,030 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:21:39,031 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:21:39,031 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:21:39,031 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:21:39,032 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:21:39,032 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:21:39,032 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:21:39,032 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:21:39,034 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:21:39,034 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:21:39,034 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:21:39,035 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 [2023-11-12 02:21:39,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:21:39,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:21:39,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:21:39,481 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:21:39,482 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:21:39,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/float-benchs/water_pid.c [2023-11-12 02:21:42,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:21:42,892 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:21:42,893 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/sv-benchmarks/c/float-benchs/water_pid.c [2023-11-12 02:21:42,903 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/data/33eaa70d0/0fcc590191334d5284180733eb2e0d77/FLAG37f9196f2 [2023-11-12 02:21:42,919 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/data/33eaa70d0/0fcc590191334d5284180733eb2e0d77 [2023-11-12 02:21:42,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:21:42,924 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:21:42,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:21:42,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:21:42,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:21:42,933 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:21:42" (1/1) ... [2023-11-12 02:21:42,935 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19a33e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:42, skipping insertion in model container [2023-11-12 02:21:42,935 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:21:42" (1/1) ... [2023-11-12 02:21:42,958 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:21:43,112 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/sv-benchmarks/c/float-benchs/water_pid.c[452,465] [2023-11-12 02:21:43,135 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:21:43,152 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:21:43,166 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/sv-benchmarks/c/float-benchs/water_pid.c[452,465] [2023-11-12 02:21:43,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:21:43,191 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:21:43,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:43 WrapperNode [2023-11-12 02:21:43,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:21:43,194 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:21:43,194 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:21:43,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:21:43,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:43" (1/1) ... [2023-11-12 02:21:43,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:43" (1/1) ... [2023-11-12 02:21:43,241 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-11-12 02:21:43,242 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:21:43,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:21:43,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:21:43,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:21:43,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:43" (1/1) ... [2023-11-12 02:21:43,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:43" (1/1) ... [2023-11-12 02:21:43,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:43" (1/1) ... [2023-11-12 02:21:43,257 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:43" (1/1) ... [2023-11-12 02:21:43,264 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:43" (1/1) ... [2023-11-12 02:21:43,268 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:43" (1/1) ... [2023-11-12 02:21:43,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:43" (1/1) ... [2023-11-12 02:21:43,272 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:43" (1/1) ... [2023-11-12 02:21:43,275 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:21:43,276 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:21:43,276 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:21:43,276 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:21:43,277 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:43" (1/1) ... [2023-11-12 02:21:43,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:21:43,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:43,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:21:43,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:21:43,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:21:43,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:21:43,360 INFO L130 BoogieDeclarations]: Found specification of procedure y [2023-11-12 02:21:43,360 INFO L138 BoogieDeclarations]: Found implementation of procedure y [2023-11-12 02:21:43,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:21:43,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:21:43,455 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:21:43,457 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:21:48,457 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:21:48,466 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:21:48,466 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:21:48,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:21:48 BoogieIcfgContainer [2023-11-12 02:21:48,469 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:21:48,472 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:21:48,472 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:21:48,477 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:21:48,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:21:42" (1/3) ... [2023-11-12 02:21:48,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2364965f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:21:48, skipping insertion in model container [2023-11-12 02:21:48,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:43" (2/3) ... [2023-11-12 02:21:48,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2364965f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:21:48, skipping insertion in model container [2023-11-12 02:21:48,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:21:48" (3/3) ... [2023-11-12 02:21:48,482 INFO L112 eAbstractionObserver]: Analyzing ICFG water_pid.c [2023-11-12 02:21:48,501 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:21:48,501 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:21:48,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:21:48,561 INFO L357 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, mHoare=true, 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;@3374bedb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:21:48,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:21:48,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:21:48,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:21:48,575 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:48,576 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:48,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:48,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:48,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1533419321, now seen corresponding path program 1 times [2023-11-12 02:21:48,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:21:48,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904081163] [2023-11-12 02:21:48,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:48,601 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 [2023-11-12 02:21:48,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:21:48,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:21:48,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5092ed-3266-4749-a4ea-ecd00e1acf43/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:21:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:51,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-12 02:21:51,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:05,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:22:05,050 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:05,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:22:05,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904081163] [2023-11-12 02:22:05,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904081163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:05,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:05,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:22:05,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729934232] [2023-11-12 02:22:05,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:05,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:22:05,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:22:05,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:22:05,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:22:05,098 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:22:13,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:15,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:17,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:19,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:21,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:23,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:25,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:31,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:33,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:35,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:37,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:39,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:41,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []