./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd --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 2fdde3d352865d24f00edfb02cdd5994421923a5ea92d15a0168523776b8ab34 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:55:36,113 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:55:36,214 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:55:36,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:55:36,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:55:36,265 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:55:36,267 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:55:36,267 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:55:36,268 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:55:36,268 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:55:36,269 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:55:36,269 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:55:36,269 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:55:36,270 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:55:36,271 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:55:36,272 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:55:36,272 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:55:36,272 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:55:36,272 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:55:36,272 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:55:36,272 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:55:36,272 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:55:36,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:55:36,273 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:55:36,273 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:55:36,274 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:55:36,274 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:55:36,274 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:55:36,274 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:55:36,274 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:55:36,275 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:55:36,275 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:55:36,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:55:36,276 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:55:36,276 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:55:36,276 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:55:36,276 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:55:36,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:55:36,276 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:55:36,276 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:55:36,277 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:55:36,277 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:55:36,277 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd 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 -> 2fdde3d352865d24f00edfb02cdd5994421923a5ea92d15a0168523776b8ab34 [2024-11-13 15:55:36,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:55:36,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:55:36,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:55:36,724 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:55:36,725 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:55:36,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound50.c Unable to find full path for "g++" [2024-11-13 15:55:39,246 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:55:39,626 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:55:39,627 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound50.c [2024-11-13 15:55:39,642 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/data/39bf2997d/ac2b12b8104447d1a9bd336c061c38b8/FLAG8fba2a352 [2024-11-13 15:55:39,860 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/data/39bf2997d/ac2b12b8104447d1a9bd336c061c38b8 [2024-11-13 15:55:39,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:55:39,872 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:55:39,874 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:55:39,874 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:55:39,881 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:55:39,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:55:39" (1/1) ... [2024-11-13 15:55:39,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b906818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:39, skipping insertion in model container [2024-11-13 15:55:39,886 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:55:39" (1/1) ... [2024-11-13 15:55:39,911 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:55:40,136 WARN L250 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_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound50.c[712,725] [2024-11-13 15:55:40,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:55:40,177 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:55:40,191 WARN L250 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_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound50.c[712,725] [2024-11-13 15:55:40,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:55:40,219 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:55:40,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:40 WrapperNode [2024-11-13 15:55:40,221 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:55:40,222 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:55:40,223 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:55:40,223 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:55:40,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:40" (1/1) ... [2024-11-13 15:55:40,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:40" (1/1) ... [2024-11-13 15:55:40,268 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2024-11-13 15:55:40,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:55:40,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:55:40,270 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:55:40,270 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:55:40,282 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:40" (1/1) ... [2024-11-13 15:55:40,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:40" (1/1) ... [2024-11-13 15:55:40,285 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:40" (1/1) ... [2024-11-13 15:55:40,312 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 15:55:40,313 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:40" (1/1) ... [2024-11-13 15:55:40,313 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:40" (1/1) ... [2024-11-13 15:55:40,320 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:40" (1/1) ... [2024-11-13 15:55:40,332 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:40" (1/1) ... [2024-11-13 15:55:40,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:40" (1/1) ... [2024-11-13 15:55:40,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:40" (1/1) ... [2024-11-13 15:55:40,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:55:40,339 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:55:40,339 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:55:40,339 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:55:40,340 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:40" (1/1) ... [2024-11-13 15:55:40,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:55:40,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:55:40,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:55:40,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:55:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:55:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:55:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:55:40,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:55:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 15:55:40,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 15:55:40,505 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:55:40,508 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:55:40,662 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-13 15:55:40,663 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:55:40,674 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:55:40,675 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:55:40,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:55:40 BoogieIcfgContainer [2024-11-13 15:55:40,675 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:55:40,679 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:55:40,680 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:55:40,687 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:55:40,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:55:39" (1/3) ... [2024-11-13 15:55:40,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e723cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:55:40, skipping insertion in model container [2024-11-13 15:55:40,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:40" (2/3) ... [2024-11-13 15:55:40,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e723cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:55:40, skipping insertion in model container [2024-11-13 15:55:40,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:55:40" (3/3) ... [2024-11-13 15:55:40,691 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_valuebound50.c [2024-11-13 15:55:40,713 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:55:40,715 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG freire1_valuebound50.c that has 2 procedures, 18 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:55:40,786 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:55:40,811 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;@eb6383, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:55:40,812 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:55:40,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 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) [2024-11-13 15:55:40,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 15:55:40,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:40,831 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:55:40,832 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:55:40,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:40,837 INFO L85 PathProgramCache]: Analyzing trace with hash -588633919, now seen corresponding path program 1 times [2024-11-13 15:55:40,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:55:40,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183784049] [2024-11-13 15:55:40,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:40,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:55:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:41,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:41,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:55:41,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183784049] [2024-11-13 15:55:41,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183784049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:55:41,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:55:41,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:55:41,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086409407] [2024-11-13 15:55:41,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:55:41,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:55:41,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:55:41,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:55:41,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:55:41,124 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 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 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-13 15:55:41,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:55:41,154 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2024-11-13 15:55:41,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:55:41,159 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 9 [2024-11-13 15:55:41,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:55:41,170 INFO L225 Difference]: With dead ends: 33 [2024-11-13 15:55:41,171 INFO L226 Difference]: Without dead ends: 14 [2024-11-13 15:55:41,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:55:41,182 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:55:41,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:55:41,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-13 15:55:41,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-13 15:55:41,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 15:55:41,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2024-11-13 15:55:41,240 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 9 [2024-11-13 15:55:41,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:55:41,241 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-11-13 15:55:41,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-13 15:55:41,242 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-13 15:55:41,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 15:55:41,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:41,245 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:55:41,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:55:41,246 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:55:41,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:41,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1186373443, now seen corresponding path program 1 times [2024-11-13 15:55:41,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:55:41,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730429871] [2024-11-13 15:55:41,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:41,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:55:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:55:41,275 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:55:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:55:41,322 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:55:41,322 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:55:41,326 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 15:55:41,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:55:41,337 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 15:55:41,363 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:55:41,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:55:41 BoogieIcfgContainer [2024-11-13 15:55:41,373 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:55:41,374 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:55:41,375 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:55:41,376 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:55:41,377 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:55:40" (3/4) ... [2024-11-13 15:55:41,380 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 15:55:41,382 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:55:41,385 INFO L158 Benchmark]: Toolchain (without parser) took 1513.85ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 49.3MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 15:55:41,387 INFO L158 Benchmark]: CDTParser took 1.65ms. Allocated memory is still 83.9MB. Free memory was 42.1MB in the beginning and 41.9MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:55:41,388 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.66ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 81.0MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:55:41,389 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.20ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:55:41,389 INFO L158 Benchmark]: Boogie Preprocessor took 68.20ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.9MB in the end (delta: 863.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:55:41,390 INFO L158 Benchmark]: RCFGBuilder took 337.08ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 69.5MB in the end (delta: 9.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:55:41,390 INFO L158 Benchmark]: TraceAbstraction took 693.36ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 49.7MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:55:41,391 INFO L158 Benchmark]: Witness Printer took 8.90ms. Allocated memory is still 117.4MB. Free memory was 49.7MB in the beginning and 49.3MB in the end (delta: 430.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:55:41,398 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.65ms. Allocated memory is still 83.9MB. Free memory was 42.1MB in the beginning and 41.9MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.66ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 81.0MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.20ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 68.20ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.9MB in the end (delta: 863.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 337.08ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 69.5MB in the end (delta: 9.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 693.36ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 49.7MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 8.90ms. Allocated memory is still 117.4MB. Free memory was 49.7MB in the beginning and 49.3MB in the end (delta: 430.8kB). 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 33, overapproximation of someBinaryArithmeticDOUBLEoperation at line 29, overapproximation of someBinaryDOUBLEComparisonOperation at line 28. Possible FailurePath: [L25] int r; [L26] double a, x; [L27] a = __VERIFIER_nondet_double() [L28] CALL assume_abort_if_not(a>=0 && a<=50) [L14] COND FALSE !(!cond) [L28] RET assume_abort_if_not(a>=0 && a<=50) [L29] x = a / 2.0 [L30] r = 0 VAL [r=0] [L32] COND TRUE 1 VAL [r=0] [L33] CALL __VERIFIER_assert((int)(r*r - a - r + 2*x) == 0) 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, 18 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, 19 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, 19 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=18occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 15:55:41,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/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: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd --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 2fdde3d352865d24f00edfb02cdd5994421923a5ea92d15a0168523776b8ab34 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:55:45,049 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:55:45,209 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 15:55:45,230 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:55:45,231 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:55:45,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:55:45,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:55:45,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:55:45,277 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:55:45,277 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:55:45,279 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:55:45,279 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:55:45,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:55:45,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:55:45,280 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:55:45,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:55:45,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:55:45,280 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:55:45,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:55:45,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:55:45,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:55:45,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:55:45,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:55:45,282 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:55:45,282 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 15:55:45,282 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:55:45,282 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 15:55:45,282 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:55:45,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:55:45,283 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:55:45,283 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:55:45,283 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:55:45,283 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:55:45,283 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:55:45,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:55:45,283 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:55:45,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:55:45,284 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:55:45,284 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 15:55:45,284 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 15:55:45,284 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:55:45,284 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:55:45,284 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:55:45,285 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:55:45,286 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd 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 -> 2fdde3d352865d24f00edfb02cdd5994421923a5ea92d15a0168523776b8ab34 [2024-11-13 15:55:45,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:55:45,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:55:45,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:55:45,777 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:55:45,777 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:55:45,779 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound50.c Unable to find full path for "g++" [2024-11-13 15:55:48,315 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:55:48,632 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:55:48,632 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound50.c [2024-11-13 15:55:48,647 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/data/982a38ed4/8c284b870ee64907968a21121df4a3f9/FLAGeb5148aa7 [2024-11-13 15:55:48,903 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/data/982a38ed4/8c284b870ee64907968a21121df4a3f9 [2024-11-13 15:55:48,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:55:48,908 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:55:48,912 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:55:48,912 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:55:48,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:55:48,920 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:55:48" (1/1) ... [2024-11-13 15:55:48,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71bf86d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:48, skipping insertion in model container [2024-11-13 15:55:48,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:55:48" (1/1) ... [2024-11-13 15:55:48,945 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:55:49,169 WARN L250 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_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound50.c[712,725] [2024-11-13 15:55:49,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:55:49,208 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:55:49,219 WARN L250 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_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound50.c[712,725] [2024-11-13 15:55:49,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:55:49,245 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:55:49,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:49 WrapperNode [2024-11-13 15:55:49,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:55:49,247 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:55:49,248 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:55:49,248 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:55:49,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:49" (1/1) ... [2024-11-13 15:55:49,267 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:49" (1/1) ... [2024-11-13 15:55:49,289 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 33 [2024-11-13 15:55:49,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:55:49,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:55:49,291 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:55:49,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:55:49,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:49" (1/1) ... [2024-11-13 15:55:49,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:49" (1/1) ... [2024-11-13 15:55:49,309 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:49" (1/1) ... [2024-11-13 15:55:49,335 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 15:55:49,336 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:49" (1/1) ... [2024-11-13 15:55:49,336 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:49" (1/1) ... [2024-11-13 15:55:49,351 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:49" (1/1) ... [2024-11-13 15:55:49,360 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:49" (1/1) ... [2024-11-13 15:55:49,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:49" (1/1) ... [2024-11-13 15:55:49,366 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:49" (1/1) ... [2024-11-13 15:55:49,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:55:49,372 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:55:49,373 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:55:49,373 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:55:49,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:49" (1/1) ... [2024-11-13 15:55:49,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:55:49,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:55:49,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:55:49,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:55:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:55:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 15:55:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:55:49,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:55:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 15:55:49,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 15:55:49,569 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:55:49,571 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:55:50,281 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-13 15:55:50,281 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:55:50,294 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:55:50,294 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:55:50,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:55:50 BoogieIcfgContainer [2024-11-13 15:55:50,294 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:55:50,301 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:55:50,301 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:55:50,308 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:55:50,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:55:48" (1/3) ... [2024-11-13 15:55:50,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77461266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:55:50, skipping insertion in model container [2024-11-13 15:55:50,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:55:49" (2/3) ... [2024-11-13 15:55:50,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77461266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:55:50, skipping insertion in model container [2024-11-13 15:55:50,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:55:50" (3/3) ... [2024-11-13 15:55:50,318 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_valuebound50.c [2024-11-13 15:55:50,341 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:55:50,344 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG freire1_valuebound50.c that has 2 procedures, 18 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:55:50,418 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:55:50,434 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;@932a074, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:55:50,434 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:55:50,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 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) [2024-11-13 15:55:50,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 15:55:50,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:50,449 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:55:50,449 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:55:50,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:50,455 INFO L85 PathProgramCache]: Analyzing trace with hash -588633919, now seen corresponding path program 1 times [2024-11-13 15:55:50,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:55:50,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915135044] [2024-11-13 15:55:50,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:50,476 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 [2024-11-13 15:55:50,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:55:50,481 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 15:55:50,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 15:55:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:50,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 15:55:50,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:55:50,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:50,955 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:55:50,956 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:55:50,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915135044] [2024-11-13 15:55:50,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1915135044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:55:50,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:55:50,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:55:50,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653521151] [2024-11-13 15:55:50,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:55:50,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:55:50,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:55:50,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:55:50,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:55:50,989 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 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 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-13 15:55:51,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:55:51,010 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2024-11-13 15:55:51,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:55:51,012 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 9 [2024-11-13 15:55:51,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:55:51,019 INFO L225 Difference]: With dead ends: 33 [2024-11-13 15:55:51,019 INFO L226 Difference]: Without dead ends: 14 [2024-11-13 15:55:51,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:55:51,026 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:55:51,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:55:51,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-13 15:55:51,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-13 15:55:51,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 15:55:51,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2024-11-13 15:55:51,078 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 9 [2024-11-13 15:55:51,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:55:51,079 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-11-13 15:55:51,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-13 15:55:51,080 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-13 15:55:51,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 15:55:51,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:51,081 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:55:51,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/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)] Forceful destruction successful, exit code 0 [2024-11-13 15:55:51,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 15:55:51,283 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:55:51,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:51,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1186373443, now seen corresponding path program 1 times [2024-11-13 15:55:51,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:55:51,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692691753] [2024-11-13 15:55:51,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:51,284 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 [2024-11-13 15:55:51,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:55:51,292 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 15:55:51,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 15:55:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:55:51,781 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:55:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:55:52,169 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2024-11-13 15:55:52,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132551323] [2024-11-13 15:55:52,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:52,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:55:52,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:55:52,172 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:55:52,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:56:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:12,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 15:56:12,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:56:25,976 WARN L286 SmtUtils]: Spent 7.50s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:56:40,126 WARN L286 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:56:45,952 WARN L286 SmtUtils]: Spent 5.83s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:56:54,046 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:57:28,796 WARN L286 SmtUtils]: Spent 29.28s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:57:41,059 WARN L286 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:57:46,281 WARN L286 SmtUtils]: Spent 5.22s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:57:54,367 WARN L286 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:57:58,408 WARN L851 $PredicateComparison]: unable to prove that (or (and (= (_ bv0 32) c___VERIFIER_assert_~cond) (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (fp.geq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| .cse0) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv50 32))) (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1|) .cse0) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven 2.0))))) (_ bv0 32))))))) (= (_ bv1 32) c___VERIFIER_assert_~cond)) is different from false [2024-11-13 15:58:10,689 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:58:16,605 WARN L286 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:58:24,698 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:58:28,748 WARN L851 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (fp.geq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| .cse0) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv50 32))) (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1|) .cse0) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven 2.0))))) (_ bv0 32)))))) is different from false [2024-11-13 15:58:32,780 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (fp.geq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| .cse0) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv50 32))) (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1|) .cse0) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven 2.0))))) (_ bv0 32)))))) is different from true [2024-11-13 15:58:32,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:58:32,781 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:58:32,782 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:58:32,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692691753] [2024-11-13 15:58:32,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:58:32,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132551323] [2024-11-13 15:58:32,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132551323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:32,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:32,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:58:32,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966431440] [2024-11-13 15:58:32,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:32,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:58:32,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:58:32,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:58:32,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2024-11-13 15:58:32,788 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 7 states have internal predecessors, (8), 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) [2024-11-13 15:58:38,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:58:42,549 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 [] [2024-11-13 15:58:47,610 WARN L851 $PredicateComparison]: unable to prove that (and (or (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (fp.geq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| .cse0) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv50 32))) (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1|) .cse0) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven 2.0))))) (_ bv0 32)))))) (= (_ bv0 32) |c___VERIFIER_assert_#in~cond|)) (= (_ bv1 32) |c___VERIFIER_assert_#in~cond|)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-11-13 15:58:51,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:58:54,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:58:57,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:59:01,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:59:05,689 WARN L539 Checker$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 [] [2024-11-13 15:59:09,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:59:14,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:59:18,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:59:22,392 WARN L539 Checker$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 [0] [2024-11-13 15:59:26,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:59:30,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:59:34,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:59:38,751 WARN L539 Checker$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 [0] [2024-11-13 15:59:43,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:59:47,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:59:51,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:59:55,496 WARN L539 Checker$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 [0] [2024-11-13 15:59:55,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:59:55,496 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2024-11-13 15:59:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:59:55,647 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.0) internal successors, (8), 7 states have internal predecessors, (8), 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 9 [2024-11-13 15:59:55,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:59:55,649 INFO L225 Difference]: With dead ends: 24 [2024-11-13 15:59:55,649 INFO L226 Difference]: Without dead ends: 21 [2024-11-13 15:59:55,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 59.9s TimeCoverageRelationStatistics Valid=21, Invalid=29, Unknown=4, NotChecked=36, Total=90 [2024-11-13 15:59:55,651 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 17 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 78.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:59:55,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 36 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 17 Unknown, 63 Unchecked, 78.5s Time] [2024-11-13 15:59:55,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-13 15:59:55,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-13 15:59:55,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:59:55,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2024-11-13 15:59:55,663 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 9 [2024-11-13 15:59:55,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:59:55,664 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2024-11-13 15:59:55,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.0) internal successors, (8), 7 states have internal predecessors, (8), 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) [2024-11-13 15:59:55,664 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2024-11-13 15:59:55,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 15:59:55,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:59:55,665 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:59:55,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/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)] Ended with exit code 0 [2024-11-13 15:59:55,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 15:59:56,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:59:56,067 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:59:56,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:59:56,068 INFO L85 PathProgramCache]: Analyzing trace with hash 401115194, now seen corresponding path program 1 times [2024-11-13 15:59:56,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:59:56,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1629096242] [2024-11-13 15:59:56,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:59:56,069 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 [2024-11-13 15:59:56,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:59:56,072 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 15:59:56,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/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 (5)] Waiting until timeout for monitored process [2024-11-13 15:59:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:59:57,059 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:59:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:59:57,997 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2024-11-13 15:59:57,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1538552072] [2024-11-13 15:59:57,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:59:57,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:59:57,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:59:58,000 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:59:58,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07df9a9-4bc4-4b9d-acd7-296a763e6f25/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process