./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 2d431936a29cc36080ed8e682b8710bc84852895ee04dfb24fab46f24aa96450 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:01:07,644 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:01:07,708 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:01:07,714 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:01:07,715 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:01:07,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:01:07,750 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:01:07,751 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:01:07,752 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:01:07,757 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:01:07,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:01:07,759 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:01:07,760 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:01:07,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:01:07,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:01:07,763 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:01:07,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:01:07,764 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:01:07,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:01:07,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:01:07,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:01:07,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:01:07,766 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:01:07,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:01:07,767 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:01:07,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:01:07,768 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:01:07,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:01:07,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:01:07,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:01:07,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:01:07,772 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:01:07,772 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:01:07,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:01:07,773 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:01:07,773 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:01:07,773 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:01:07,773 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:01:07,774 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:01:07,774 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d431936a29cc36080ed8e682b8710bc84852895ee04dfb24fab46f24aa96450 [2023-11-06 22:01:08,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:01:08,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:01:08,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:01:08,141 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:01:08,141 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:01:08,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2023-11-06 22:01:11,266 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:01:11,472 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:01:11,473 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2023-11-06 22:01:11,482 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/data/d744fdba8/2ce98fef00fc40dabc89b4d51fed74a8/FLAG991f25fea [2023-11-06 22:01:11,497 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/data/d744fdba8/2ce98fef00fc40dabc89b4d51fed74a8 [2023-11-06 22:01:11,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:01:11,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:01:11,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:01:11,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:01:11,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:01:11,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:01:11" (1/1) ... [2023-11-06 22:01:11,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e77f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:11, skipping insertion in model container [2023-11-06 22:01:11,512 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:01:11" (1/1) ... [2023-11-06 22:01:11,537 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:01:11,732 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942] [2023-11-06 22:01:11,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:01:11,751 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:01:11,783 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942] [2023-11-06 22:01:11,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:01:11,800 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:01:11,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:11 WrapperNode [2023-11-06 22:01:11,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:01:11,803 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:01:11,803 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:01:11,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:01:11,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:11" (1/1) ... [2023-11-06 22:01:11,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:11" (1/1) ... [2023-11-06 22:01:11,851 INFO L138 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 136 [2023-11-06 22:01:11,852 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:01:11,853 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:01:11,853 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:01:11,853 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:01:11,862 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:11" (1/1) ... [2023-11-06 22:01:11,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:11" (1/1) ... [2023-11-06 22:01:11,865 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:11" (1/1) ... [2023-11-06 22:01:11,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:11" (1/1) ... [2023-11-06 22:01:11,873 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:11" (1/1) ... [2023-11-06 22:01:11,877 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:11" (1/1) ... [2023-11-06 22:01:11,879 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:11" (1/1) ... [2023-11-06 22:01:11,881 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:11" (1/1) ... [2023-11-06 22:01:11,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:01:11,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:01:11,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:01:11,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:01:11,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:11" (1/1) ... [2023-11-06 22:01:11,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:01:11,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:01:11,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:01:11,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:01:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:01:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:01:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:01:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-06 22:01:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:01:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-06 22:01:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:01:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:01:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:01:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:01:12,047 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:01:12,049 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:01:12,329 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:01:12,336 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:01:12,336 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-06 22:01:12,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:01:12 BoogieIcfgContainer [2023-11-06 22:01:12,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:01:12,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:01:12,355 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:01:12,359 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:01:12,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:01:11" (1/3) ... [2023-11-06 22:01:12,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2f6d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:01:12, skipping insertion in model container [2023-11-06 22:01:12,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:11" (2/3) ... [2023-11-06 22:01:12,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2f6d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:01:12, skipping insertion in model container [2023-11-06 22:01:12,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:01:12" (3/3) ... [2023-11-06 22:01:12,362 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2023-11-06 22:01:12,377 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:01:12,377 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:01:12,423 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:01:12,431 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@73d6d712, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:01:12,431 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:01:12,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6388888888888888) internal successors, (59), 37 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:12,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:01:12,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:12,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:12,443 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:01:12,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:12,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1903026384, now seen corresponding path program 1 times [2023-11-06 22:01:12,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:12,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428605005] [2023-11-06 22:01:12,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:12,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:12,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:01:12,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428605005] [2023-11-06 22:01:12,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428605005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:12,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:12,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:01:12,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445626745] [2023-11-06 22:01:12,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:12,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:01:12,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:01:12,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:01:12,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:01:12,649 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.6388888888888888) internal successors, (59), 37 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:12,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:12,669 INFO L93 Difference]: Finished difference Result 74 states and 116 transitions. [2023-11-06 22:01:12,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:01:12,671 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-06 22:01:12,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:12,680 INFO L225 Difference]: With dead ends: 74 [2023-11-06 22:01:12,680 INFO L226 Difference]: Without dead ends: 35 [2023-11-06 22:01:12,683 INFO L412 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 [2023-11-06 22:01:12,687 INFO L413 NwaCegarLoop]: 51 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, 51 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 [2023-11-06 22:01:12,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:01:12,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-06 22:01:12,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-06 22:01:12,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.411764705882353) internal successors, (48), 34 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:12,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2023-11-06 22:01:12,721 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 9 [2023-11-06 22:01:12,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:12,722 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2023-11-06 22:01:12,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:12,722 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2023-11-06 22:01:12,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:01:12,723 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:12,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:12,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:01:12,724 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:01:12,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:12,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1485324429, now seen corresponding path program 1 times [2023-11-06 22:01:12,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:12,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746907424] [2023-11-06 22:01:12,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:12,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:01:12,783 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:01:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:01:12,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:01:12,847 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:01:12,849 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:01:12,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:01:12,855 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:01:12,859 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:01:12,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:01:12 BoogieIcfgContainer [2023-11-06 22:01:12,881 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:01:12,881 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:01:12,881 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:01:12,882 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:01:12,882 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:01:12" (3/4) ... [2023-11-06 22:01:12,884 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:01:12,885 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:01:12,886 INFO L158 Benchmark]: Toolchain (without parser) took 1384.28ms. Allocated memory is still 148.9MB. Free memory was 110.9MB in the beginning and 91.6MB in the end (delta: 19.2MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2023-11-06 22:01:12,887 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory was 76.6MB in the beginning and 76.6MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:01:12,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.34ms. Allocated memory is still 148.9MB. Free memory was 110.9MB in the beginning and 99.1MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:01:12,888 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.45ms. Allocated memory is still 148.9MB. Free memory was 99.1MB in the beginning and 97.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:01:12,889 INFO L158 Benchmark]: Boogie Preprocessor took 31.46ms. Allocated memory is still 148.9MB. Free memory was 97.3MB in the beginning and 95.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:01:12,889 INFO L158 Benchmark]: RCFGBuilder took 453.08ms. Allocated memory is still 148.9MB. Free memory was 95.6MB in the beginning and 81.3MB in the end (delta: 14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:01:12,890 INFO L158 Benchmark]: TraceAbstraction took 527.61ms. Allocated memory is still 148.9MB. Free memory was 119.4MB in the beginning and 92.3MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-06 22:01:12,890 INFO L158 Benchmark]: Witness Printer took 4.25ms. Allocated memory is still 148.9MB. Free memory was 92.3MB in the beginning and 91.6MB in the end (delta: 712.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:01:12,894 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory was 76.6MB in the beginning and 76.6MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.34ms. Allocated memory is still 148.9MB. Free memory was 110.9MB in the beginning and 99.1MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.45ms. Allocated memory is still 148.9MB. Free memory was 99.1MB in the beginning and 97.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.46ms. Allocated memory is still 148.9MB. Free memory was 97.3MB in the beginning and 95.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 453.08ms. Allocated memory is still 148.9MB. Free memory was 95.6MB in the beginning and 81.3MB in the end (delta: 14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 527.61ms. Allocated memory is still 148.9MB. Free memory was 119.4MB in the beginning and 92.3MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.25ms. Allocated memory is still 148.9MB. Free memory was 92.3MB in the beginning and 91.6MB in the end (delta: 712.7kB). 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: 98]: 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 someBinaryFLOATComparisonOperation at line 15, overapproximation of someBinaryArithmeticFLOAToperation at line 32. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L93] float x = 0.0f / 0.0f; [L94] CALL, EXPR __ieee754_sqrtf(x) [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [\old(x)=4286578697, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578697] [L25] ieee_float_shape_type gf_u; [L26] EXPR gf_u.value = (x) [L27] EXPR gf_u.word [L27] EXPR (ix) = gf_u.word [L24-L28] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=4286578697, ix=-8388608, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578697] [L29] hx = ix & 0x7fffffff VAL [\old(x)=4286578697, hx=2139095040, ix=-8388608, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578697] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [\old(x)=4286578697, hx=2139095040, ix=-8388608, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578697] [L94] RET, EXPR __ieee754_sqrtf(x) [L94] float res = __ieee754_sqrtf(x); [L97] CALL, EXPR isnan_float(res) [L15] return x != x; VAL [\old(x)=4286578696, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578696] [L97] RET, EXPR isnan_float(res) [L97] COND TRUE !isnan_float(res) [L98] reach_error() VAL [one_sqrt=1, res=4286578696, tiny_sqrt=1/1000000000000000000000000000000, x=4286578697] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 51 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, 51 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=38occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 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 [2023-11-06 22:01:12,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 2d431936a29cc36080ed8e682b8710bc84852895ee04dfb24fab46f24aa96450 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:01:15,738 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:01:15,871 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:01:15,880 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:01:15,883 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:01:15,931 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:01:15,931 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:01:15,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:01:15,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:01:15,938 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:01:15,939 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:01:15,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:01:15,940 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:01:15,943 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:01:15,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:01:15,944 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:01:15,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:01:15,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:01:15,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:01:15,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:01:15,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:01:15,947 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:01:15,948 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:01:15,948 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:01:15,949 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:01:15,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:01:15,950 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:01:15,950 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:01:15,950 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:01:15,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:01:15,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:01:15,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:01:15,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:01:15,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:01:15,954 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:01:15,954 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:01:15,955 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:01:15,955 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:01:15,955 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:01:15,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:01:15,956 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:01:15,957 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:01:15,957 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d431936a29cc36080ed8e682b8710bc84852895ee04dfb24fab46f24aa96450 [2023-11-06 22:01:16,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:01:16,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:01:16,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:01:16,469 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:01:16,470 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:01:16,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2023-11-06 22:01:19,644 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:01:19,964 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:01:19,964 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2023-11-06 22:01:19,974 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/data/88d2c950f/888291139372445aa72632c9e19cfb39/FLAGa6d12e3f9 [2023-11-06 22:01:19,989 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/data/88d2c950f/888291139372445aa72632c9e19cfb39 [2023-11-06 22:01:19,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:01:19,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:01:19,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:01:19,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:01:20,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:01:20,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:01:19" (1/1) ... [2023-11-06 22:01:20,003 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20127e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:20, skipping insertion in model container [2023-11-06 22:01:20,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:01:19" (1/1) ... [2023-11-06 22:01:20,028 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:01:20,295 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942] [2023-11-06 22:01:20,300 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:01:20,328 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:01:20,366 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942] [2023-11-06 22:01:20,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:01:20,385 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:01:20,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:20 WrapperNode [2023-11-06 22:01:20,386 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:01:20,387 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:01:20,387 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:01:20,387 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:01:20,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:20" (1/1) ... [2023-11-06 22:01:20,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:20" (1/1) ... [2023-11-06 22:01:20,466 INFO L138 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 115 [2023-11-06 22:01:20,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:01:20,467 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:01:20,467 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:01:20,467 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:01:20,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:20" (1/1) ... [2023-11-06 22:01:20,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:20" (1/1) ... [2023-11-06 22:01:20,500 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:20" (1/1) ... [2023-11-06 22:01:20,501 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:20" (1/1) ... [2023-11-06 22:01:20,510 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:20" (1/1) ... [2023-11-06 22:01:20,527 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:20" (1/1) ... [2023-11-06 22:01:20,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:20" (1/1) ... [2023-11-06 22:01:20,532 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:20" (1/1) ... [2023-11-06 22:01:20,536 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:01:20,537 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:01:20,537 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:01:20,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:01:20,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:20" (1/1) ... [2023-11-06 22:01:20,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:01:20,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:01:20,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:01:20,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:01:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:01:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:01:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:01:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-06 22:01:20,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 22:01:20,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:01:20,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:01:20,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-06 22:01:20,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 22:01:20,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:01:20,817 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:01:20,820 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:01:21,598 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:01:21,605 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:01:21,605 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-06 22:01:21,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:01:21 BoogieIcfgContainer [2023-11-06 22:01:21,607 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:01:21,610 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:01:21,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:01:21,615 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:01:21,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:01:19" (1/3) ... [2023-11-06 22:01:21,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d353078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:01:21, skipping insertion in model container [2023-11-06 22:01:21,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:20" (2/3) ... [2023-11-06 22:01:21,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d353078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:01:21, skipping insertion in model container [2023-11-06 22:01:21,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:01:21" (3/3) ... [2023-11-06 22:01:21,621 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2023-11-06 22:01:21,641 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:01:21,642 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:01:21,695 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:01:21,702 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@671f2b8c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:01:21,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:01:21,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 32 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:21,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:01:21,714 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:21,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:21,715 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:01:21,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:21,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2023-11-06 22:01:21,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:01:21,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278826525] [2023-11-06 22:01:21,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:21,735 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:21,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:01:21,747 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:01:21,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 22:01:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:21,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:01:21,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:21,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:21,990 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:01:21,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:01:21,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278826525] [2023-11-06 22:01:21,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278826525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:21,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:21,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:01:21,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326543748] [2023-11-06 22:01:22,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:22,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:01:22,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:01:22,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:01:22,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:01:22,057 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 32 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:22,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:22,089 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2023-11-06 22:01:22,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:01:22,092 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-06 22:01:22,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:22,103 INFO L225 Difference]: With dead ends: 64 [2023-11-06 22:01:22,104 INFO L226 Difference]: Without dead ends: 30 [2023-11-06 22:01:22,108 INFO L412 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 [2023-11-06 22:01:22,112 INFO L413 NwaCegarLoop]: 43 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, 43 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 [2023-11-06 22:01:22,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:01:22,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-06 22:01:22,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-11-06 22:01:22,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:22,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2023-11-06 22:01:22,161 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2023-11-06 22:01:22,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:22,161 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2023-11-06 22:01:22,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:22,162 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2023-11-06 22:01:22,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:01:22,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:22,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:22,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:01:22,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:22,378 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:01:22,379 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:22,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2023-11-06 22:01:22,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:01:22,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120194286] [2023-11-06 22:01:22,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:22,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:22,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:01:22,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:01:22,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:01:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:22,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:01:22,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:22,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:22,861 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:01:22,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:01:22,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120194286] [2023-11-06 22:01:22,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120194286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:22,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:22,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:01:22,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193894515] [2023-11-06 22:01:22,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:22,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:01:22,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:01:22,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:01:22,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:01:22,866 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:23,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:23,622 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2023-11-06 22:01:23,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:01:23,624 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-06 22:01:23,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:23,625 INFO L225 Difference]: With dead ends: 35 [2023-11-06 22:01:23,625 INFO L226 Difference]: Without dead ends: 30 [2023-11-06 22:01:23,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:01:23,627 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 40 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:23,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 125 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:01:23,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-06 22:01:23,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-11-06 22:01:23,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:23,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2023-11-06 22:01:23,635 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 10 [2023-11-06 22:01:23,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:23,635 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2023-11-06 22:01:23,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:23,636 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2023-11-06 22:01:23,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-06 22:01:23,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:23,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:23,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:01:23,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:23,850 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:01:23,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:23,851 INFO L85 PathProgramCache]: Analyzing trace with hash 591854048, now seen corresponding path program 1 times [2023-11-06 22:01:23,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:01:23,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368654444] [2023-11-06 22:01:23,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:23,852 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:23,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:01:23,854 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:01:23,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/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)] Waiting until timeout for monitored process [2023-11-06 22:01:24,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/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)] Forceful destruction successful, exit code 139 [2023-11-06 22:01:24,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:24,203 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 37 more [2023-11-06 22:01:24,207 INFO L158 Benchmark]: Toolchain (without parser) took 4212.92ms. Allocated memory was 83.9MB in the beginning and 123.7MB in the end (delta: 39.8MB). Free memory was 59.5MB in the beginning and 86.9MB in the end (delta: -27.4MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2023-11-06 22:01:24,207 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:01:24,208 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.04ms. Allocated memory is still 83.9MB. Free memory was 59.3MB in the beginning and 47.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:01:24,208 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.75ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 45.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:01:24,209 INFO L158 Benchmark]: Boogie Preprocessor took 68.78ms. Allocated memory is still 83.9MB. Free memory was 45.2MB in the beginning and 43.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:01:24,210 INFO L158 Benchmark]: RCFGBuilder took 1070.80ms. Allocated memory was 83.9MB in the beginning and 123.7MB in the end (delta: 39.8MB). Free memory was 43.2MB in the beginning and 91.9MB in the end (delta: -48.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 22:01:24,210 INFO L158 Benchmark]: TraceAbstraction took 2595.78ms. Allocated memory is still 123.7MB. Free memory was 91.4MB in the beginning and 86.9MB in the end (delta: 4.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-11-06 22:01:24,213 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.04ms. Allocated memory is still 83.9MB. Free memory was 59.3MB in the beginning and 47.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.75ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 45.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.78ms. Allocated memory is still 83.9MB. Free memory was 45.2MB in the beginning and 43.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1070.80ms. Allocated memory was 83.9MB in the beginning and 123.7MB in the end (delta: 39.8MB). Free memory was 43.2MB in the beginning and 91.9MB in the end (delta: -48.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2595.78ms. Allocated memory is still 123.7MB. Free memory was 91.4MB in the beginning and 86.9MB in the end (delta: 4.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/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) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/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) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-06 22:01:24,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13249012-5644-4a26-8af0-48f1e2a69ab0/bin/uautomizer-verify-WvqO1wxjHP/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) with exit command (exit)) Received EOF on stdin. No stderr output.