./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1072d.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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 617ff69384da5814b2b527d10c4fa0e27490c5a4838f31ba8705b37c822dda78 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:57:55,329 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:57:55,459 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 21:57:55,473 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:57:55,474 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:57:55,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:57:55,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:57:55,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:57:55,511 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:57:55,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:57:55,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:57:55,514 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:57:55,514 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:57:55,515 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:57:55,515 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:57:55,516 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:57:55,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:57:55,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:57:55,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:57:55,518 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:57:55,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:57:55,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:57:55,520 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:57:55,521 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:57:55,521 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:57:55,522 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:57:55,522 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:57:55,523 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:57:55,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:57:55,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:57:55,525 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:57:55,525 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:57:55,527 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:57:55,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:57:55,528 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:57:55,529 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:57:55,529 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:57:55,529 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:57:55,530 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:57:55,530 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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617ff69384da5814b2b527d10c4fa0e27490c5a4838f31ba8705b37c822dda78 [2023-11-06 21:57:55,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:57:55,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:57:55,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:57:55,911 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:57:55,911 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:57:55,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2023-11-06 21:57:59,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:57:59,496 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:57:59,497 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2023-11-06 21:57:59,508 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/data/5a4c5c989/75097dce404c45d9932de2b9487609a2/FLAGe1a718ec4 [2023-11-06 21:57:59,526 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/data/5a4c5c989/75097dce404c45d9932de2b9487609a2 [2023-11-06 21:57:59,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:57:59,530 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:57:59,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:57:59,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:57:59,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:57:59,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:57:59" (1/1) ... [2023-11-06 21:57:59,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45321b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:59, skipping insertion in model container [2023-11-06 21:57:59,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:57:59" (1/1) ... [2023-11-06 21:57:59,565 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:57:59,723 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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c[1573,1586] [2023-11-06 21:57:59,728 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:57:59,736 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:57:59,762 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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c[1573,1586] [2023-11-06 21:57:59,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:57:59,779 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:57:59,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:59 WrapperNode [2023-11-06 21:57:59,780 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:57:59,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:57:59,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:57:59,782 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:57:59,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:59" (1/1) ... [2023-11-06 21:57:59,800 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:59" (1/1) ... [2023-11-06 21:57:59,826 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 127 [2023-11-06 21:57:59,826 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:57:59,827 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:57:59,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:57:59,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:57:59,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:59" (1/1) ... [2023-11-06 21:57:59,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:59" (1/1) ... [2023-11-06 21:57:59,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:59" (1/1) ... [2023-11-06 21:57:59,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:59" (1/1) ... [2023-11-06 21:57:59,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:59" (1/1) ... [2023-11-06 21:57:59,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:59" (1/1) ... [2023-11-06 21:57:59,858 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:59" (1/1) ... [2023-11-06 21:57:59,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:59" (1/1) ... [2023-11-06 21:57:59,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:57:59,864 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:57:59,864 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:57:59,865 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:57:59,866 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:59" (1/1) ... [2023-11-06 21:57:59,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:57:59,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:57:59,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:57:59,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:57:59,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:57:59,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:57:59,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:57:59,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-06 21:57:59,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:57:59,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-06 21:57:59,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:57:59,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:57:59,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:57:59,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:58:00,094 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:58:00,096 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:58:00,420 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:58:00,427 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:58:00,428 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-06 21:58:00,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:00 BoogieIcfgContainer [2023-11-06 21:58:00,431 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:58:00,434 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:58:00,434 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:58:00,438 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:58:00,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:57:59" (1/3) ... [2023-11-06 21:58:00,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c94308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:00, skipping insertion in model container [2023-11-06 21:58:00,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:59" (2/3) ... [2023-11-06 21:58:00,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c94308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:00, skipping insertion in model container [2023-11-06 21:58:00,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:00" (3/3) ... [2023-11-06 21:58:00,442 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d.c [2023-11-06 21:58:00,471 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:58:00,472 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 21:58:00,528 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:58:00,535 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;@3186ed01, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:58:00,536 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 21:58:00,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 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 21:58:00,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 21:58:00,546 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:00,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:00,547 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:00,552 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:00,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1324837946, now seen corresponding path program 1 times [2023-11-06 21:58:00,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:00,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270098394] [2023-11-06 21:58:00,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:00,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:00,727 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 21:58:00,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:00,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270098394] [2023-11-06 21:58:00,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270098394] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:00,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:00,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:00,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563404325] [2023-11-06 21:58:00,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:00,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:58:00,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:00,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:58:00,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:58:00,772 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 21:58:00,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:00,794 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2023-11-06 21:58:00,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:58:00,796 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2023-11-06 21:58:00,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:00,806 INFO L225 Difference]: With dead ends: 66 [2023-11-06 21:58:00,806 INFO L226 Difference]: Without dead ends: 31 [2023-11-06 21:58:00,809 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 21:58:00,814 INFO L413 NwaCegarLoop]: 44 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, 44 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 21:58:00,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:00,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-06 21:58:00,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-06 21:58:00,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 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 21:58:00,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2023-11-06 21:58:00,858 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 12 [2023-11-06 21:58:00,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:00,858 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2023-11-06 21:58:00,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 21:58:00,859 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2023-11-06 21:58:00,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 21:58:00,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:00,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:00,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:58:00,861 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:00,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:00,862 INFO L85 PathProgramCache]: Analyzing trace with hash 712841545, now seen corresponding path program 1 times [2023-11-06 21:58:00,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:00,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610246048] [2023-11-06 21:58:00,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:00,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:01,115 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 21:58:01,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:01,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610246048] [2023-11-06 21:58:01,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610246048] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:01,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:01,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:58:01,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507180915] [2023-11-06 21:58:01,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:01,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:58:01,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:01,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:58:01,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:01,121 INFO L87 Difference]: Start difference. First operand 31 states and 41 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 21:58:01,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:01,176 INFO L93 Difference]: Finished difference Result 57 states and 75 transitions. [2023-11-06 21:58:01,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:58:01,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2023-11-06 21:58:01,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:01,178 INFO L225 Difference]: With dead ends: 57 [2023-11-06 21:58:01,179 INFO L226 Difference]: Without dead ends: 38 [2023-11-06 21:58:01,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:01,181 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 5 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:01,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 104 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:01,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-06 21:58:01,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2023-11-06 21:58:01,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 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 21:58:01,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2023-11-06 21:58:01,190 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 13 [2023-11-06 21:58:01,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:01,190 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2023-11-06 21:58:01,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 21:58:01,191 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2023-11-06 21:58:01,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 21:58:01,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:01,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:01,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:58:01,193 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:01,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:01,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1543149464, now seen corresponding path program 1 times [2023-11-06 21:58:01,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:01,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218752753] [2023-11-06 21:58:01,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:01,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:01,500 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 21:58:01,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:01,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218752753] [2023-11-06 21:58:01,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218752753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:01,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:01,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:58:01,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896408610] [2023-11-06 21:58:01,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:01,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:58:01,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:01,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:58:01,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:01,504 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 21:58:01,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:01,561 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2023-11-06 21:58:01,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:58:01,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2023-11-06 21:58:01,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:01,565 INFO L225 Difference]: With dead ends: 43 [2023-11-06 21:58:01,565 INFO L226 Difference]: Without dead ends: 34 [2023-11-06 21:58:01,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:01,567 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 20 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:01,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 75 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:01,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-06 21:58:01,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-06 21:58:01,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.303030303030303) internal successors, (43), 33 states have internal predecessors, (43), 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 21:58:01,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2023-11-06 21:58:01,574 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 43 transitions. Word has length 14 [2023-11-06 21:58:01,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:01,575 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 43 transitions. [2023-11-06 21:58:01,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 21:58:01,575 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2023-11-06 21:58:01,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-06 21:58:01,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:01,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:01,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:58:01,577 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:01,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:01,578 INFO L85 PathProgramCache]: Analyzing trace with hash -538181439, now seen corresponding path program 1 times [2023-11-06 21:58:01,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:01,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235740963] [2023-11-06 21:58:01,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:01,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:01,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:58:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:01,689 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:58:01,694 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 21:58:01,696 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 21:58:01,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:58:01,702 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-06 21:58:01,707 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:58:01,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:58:01 BoogieIcfgContainer [2023-11-06 21:58:01,755 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:58:01,756 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:58:01,756 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:58:01,756 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:58:01,757 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:00" (3/4) ... [2023-11-06 21:58:01,759 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 21:58:01,760 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:58:01,763 INFO L158 Benchmark]: Toolchain (without parser) took 2231.57ms. Allocated memory is still 136.3MB. Free memory was 104.9MB in the beginning and 65.1MB in the end (delta: 39.8MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. [2023-11-06 21:58:01,764 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 113.2MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:58:01,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.89ms. Allocated memory is still 136.3MB. Free memory was 104.7MB in the beginning and 93.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 21:58:01,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.16ms. Allocated memory is still 136.3MB. Free memory was 93.7MB in the beginning and 91.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:58:01,771 INFO L158 Benchmark]: Boogie Preprocessor took 35.95ms. Allocated memory is still 136.3MB. Free memory was 91.8MB in the beginning and 90.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:58:01,775 INFO L158 Benchmark]: RCFGBuilder took 567.11ms. Allocated memory is still 136.3MB. Free memory was 90.1MB in the beginning and 75.7MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 21:58:01,776 INFO L158 Benchmark]: TraceAbstraction took 1321.13ms. Allocated memory is still 136.3MB. Free memory was 75.0MB in the beginning and 65.8MB in the end (delta: 9.2MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2023-11-06 21:58:01,776 INFO L158 Benchmark]: Witness Printer took 5.50ms. Allocated memory is still 136.3MB. Free memory was 65.8MB in the beginning and 65.1MB in the end (delta: 667.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:58:01,780 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 113.2MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.89ms. Allocated memory is still 136.3MB. Free memory was 104.7MB in the beginning and 93.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.16ms. Allocated memory is still 136.3MB. Free memory was 93.7MB in the beginning and 91.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.95ms. Allocated memory is still 136.3MB. Free memory was 91.8MB in the beginning and 90.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 567.11ms. Allocated memory is still 136.3MB. Free memory was 90.1MB in the beginning and 75.7MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1321.13ms. Allocated memory is still 136.3MB. Free memory was 75.0MB in the beginning and 65.8MB in the end (delta: 9.2MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Witness Printer took 5.50ms. Allocated memory is still 136.3MB. Free memory was 65.8MB in the beginning and 65.1MB in the end (delta: 667.4kB). 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: 69]: 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 68, overapproximation of someUnaryFLOAToperation at line 64. Possible FailurePath: [L64] float x = -0.0f; [L65] CALL, EXPR trunc_float(x) [L15] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=6434062344, x=6434062344] [L17] ieee_float_shape_type gf_u; [L18] EXPR gf_u.value = (x) [L19] EXPR gf_u.word [L19] EXPR (w) = gf_u.word [L16-L20] { ieee_float_shape_type gf_u; gf_u.value = (x); (w) = gf_u.word; } VAL [\old(x)=6434062344, w=2139095040, x=6434062344] [L21] signbit = w & 0x80000000 VAL [\old(x)=6434062344, signbit=0, w=2139095040, x=6434062344] [L22] EXPR w & 0x7f800000 VAL [\old(x)=6434062344, signbit=0, w & 0x7f800000=2139095040, w=2139095040, x=6434062344] [L22] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 [L23] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=6434062344, exponent_less_127=128, signbit=0, w=2139095040, x=6434062344] [L39] COND FALSE !(exponent_less_127 == 255) VAL [\old(x)=6434062344, exponent_less_127=128, signbit=0, w=2139095040, x=6434062344] [L42] return x; VAL [\old(x)=6434062344, \result=6434062344, exponent_less_127=128, signbit=0, w=2139095040, x=6434062344] [L65] RET, EXPR trunc_float(x) [L65] float res = trunc_float(x); [L68] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res == -0.0f && __signbit_float(res) == 1=0, res=6434062344, x=6434062344] [L68] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L69] reach_error() VAL [res=6434062344, x=6434062344] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 223 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 107 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 116 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 52 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 21:58:01,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 617ff69384da5814b2b527d10c4fa0e27490c5a4838f31ba8705b37c822dda78 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:58:04,528 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:58:04,643 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 21:58:04,652 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:58:04,653 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:58:04,703 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:58:04,704 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:58:04,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:58:04,705 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:58:04,711 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:58:04,712 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:58:04,712 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:58:04,713 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:58:04,715 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:58:04,716 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:58:04,716 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:58:04,716 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:58:04,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:58:04,717 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:58:04,719 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:58:04,719 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:58:04,720 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:58:04,720 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 21:58:04,721 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 21:58:04,721 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:58:04,722 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:58:04,722 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:58:04,723 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:58:04,723 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:58:04,724 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:58:04,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:04,726 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:58:04,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:58:04,727 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:58:04,727 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 21:58:04,727 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 21:58:04,728 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:58:04,728 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:58:04,728 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:58:04,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:58:04,730 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 21:58:04,730 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:58:04,730 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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617ff69384da5814b2b527d10c4fa0e27490c5a4838f31ba8705b37c822dda78 [2023-11-06 21:58:05,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:58:05,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:58:05,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:58:05,246 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:58:05,247 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:58:05,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2023-11-06 21:58:08,509 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:58:08,737 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:58:08,739 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2023-11-06 21:58:08,750 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/data/d7cba011f/404b90dc334b484d862de3351aa7b329/FLAG4f5e88eb9 [2023-11-06 21:58:08,774 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/data/d7cba011f/404b90dc334b484d862de3351aa7b329 [2023-11-06 21:58:08,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:58:08,784 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:58:08,791 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:08,791 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:58:08,797 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:58:08,798 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:08" (1/1) ... [2023-11-06 21:58:08,800 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22be94fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:08, skipping insertion in model container [2023-11-06 21:58:08,800 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:08" (1/1) ... [2023-11-06 21:58:08,824 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:58:09,124 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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c[1573,1586] [2023-11-06 21:58:09,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:09,160 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:58:09,212 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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c[1573,1586] [2023-11-06 21:58:09,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:09,240 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:58:09,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:09 WrapperNode [2023-11-06 21:58:09,241 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:09,243 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:09,243 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:58:09,243 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:58:09,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:09" (1/1) ... [2023-11-06 21:58:09,280 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:09" (1/1) ... [2023-11-06 21:58:09,317 INFO L138 Inliner]: procedures = 19, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2023-11-06 21:58:09,317 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:09,318 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:58:09,318 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:58:09,319 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:58:09,330 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:09" (1/1) ... [2023-11-06 21:58:09,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:09" (1/1) ... [2023-11-06 21:58:09,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:09" (1/1) ... [2023-11-06 21:58:09,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:09" (1/1) ... [2023-11-06 21:58:09,363 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:09" (1/1) ... [2023-11-06 21:58:09,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:09" (1/1) ... [2023-11-06 21:58:09,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:09" (1/1) ... [2023-11-06 21:58:09,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:09" (1/1) ... [2023-11-06 21:58:09,395 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:58:09,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:58:09,401 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:58:09,401 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:58:09,402 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:09" (1/1) ... [2023-11-06 21:58:09,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:09,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:09,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:58:09,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:58:09,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:58:09,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 21:58:09,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:58:09,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-06 21:58:09,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 21:58:09,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:58:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:58:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-06 21:58:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 21:58:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:58:09,648 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:58:09,651 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:58:09,985 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:58:09,991 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:58:09,991 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-06 21:58:09,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:09 BoogieIcfgContainer [2023-11-06 21:58:09,994 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:58:09,997 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:58:09,997 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:58:10,000 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:58:10,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:58:08" (1/3) ... [2023-11-06 21:58:10,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd7261f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:10, skipping insertion in model container [2023-11-06 21:58:10,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:09" (2/3) ... [2023-11-06 21:58:10,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd7261f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:10, skipping insertion in model container [2023-11-06 21:58:10,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:09" (3/3) ... [2023-11-06 21:58:10,004 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d.c [2023-11-06 21:58:10,022 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:58:10,023 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 21:58:10,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:58:10,079 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;@3b7b6ded, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:58:10,079 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 21:58:10,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 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 21:58:10,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 21:58:10,091 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:10,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:10,092 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:10,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:10,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1945115165, now seen corresponding path program 1 times [2023-11-06 21:58:10,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:58:10,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [129192594] [2023-11-06 21:58:10,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:10,128 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 21:58:10,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:58:10,140 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 21:58:10,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 21:58:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:10,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 21:58:10,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:10,261 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 21:58:10,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:58:10,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:58:10,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [129192594] [2023-11-06 21:58:10,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [129192594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:10,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:10,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:10,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715916720] [2023-11-06 21:58:10,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:10,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:58:10,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:58:10,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:58:10,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:58:10,300 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 21:58:10,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:10,318 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2023-11-06 21:58:10,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:58:10,320 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 21:58:10,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:10,328 INFO L225 Difference]: With dead ends: 48 [2023-11-06 21:58:10,328 INFO L226 Difference]: Without dead ends: 22 [2023-11-06 21:58:10,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 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 21:58:10,335 INFO L413 NwaCegarLoop]: 28 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, 28 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 21:58:10,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:10,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-06 21:58:10,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-06 21:58:10,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 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 21:58:10,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2023-11-06 21:58:10,370 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 10 [2023-11-06 21:58:10,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:10,370 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2023-11-06 21:58:10,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 21:58:10,371 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-06 21:58:10,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 21:58:10,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:10,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:10,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 21:58:10,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 21:58:10,575 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:10,575 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:10,576 INFO L85 PathProgramCache]: Analyzing trace with hash -390192032, now seen corresponding path program 1 times [2023-11-06 21:58:10,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:58:10,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343319360] [2023-11-06 21:58:10,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:10,577 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 21:58:10,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:58:10,578 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 21:58:10,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 21:58:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:10,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 21:58:10,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:10,805 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 21:58:10,840 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2023-11-06 21:58:10,942 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 21:58:10,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:58:10,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:58:10,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343319360] [2023-11-06 21:58:10,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [343319360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:10,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:10,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:58:10,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268104754] [2023-11-06 21:58:10,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:10,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:58:10,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:58:10,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:58:10,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:58:10,947 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 21:58:11,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:11,067 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2023-11-06 21:58:11,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:58:11,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2023-11-06 21:58:11,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:11,069 INFO L225 Difference]: With dead ends: 32 [2023-11-06 21:58:11,069 INFO L226 Difference]: Without dead ends: 19 [2023-11-06 21:58:11,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:58:11,071 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:11,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 44 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:11,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-06 21:58:11,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-06 21:58:11,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 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 21:58:11,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2023-11-06 21:58:11,079 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 11 [2023-11-06 21:58:11,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:11,079 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2023-11-06 21:58:11,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 21:58:11,080 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2023-11-06 21:58:11,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 21:58:11,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:11,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:11,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 21:58:11,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 21:58:11,294 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:11,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:11,297 INFO L85 PathProgramCache]: Analyzing trace with hash -675711906, now seen corresponding path program 1 times [2023-11-06 21:58:11,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:58:11,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540045438] [2023-11-06 21:58:11,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:11,299 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 21:58:11,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:58:11,300 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 21:58:11,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 21:58:11,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 21:58:11,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 21:58:11,592 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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 21:58:11,596 INFO L158 Benchmark]: Toolchain (without parser) took 2812.42ms. Allocated memory was 65.0MB in the beginning and 117.4MB in the end (delta: 52.4MB). Free memory was 29.9MB in the beginning and 78.9MB in the end (delta: -49.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:58:11,596 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 65.0MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:58:11,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.61ms. Allocated memory was 65.0MB in the beginning and 117.4MB in the end (delta: 52.4MB). Free memory was 29.7MB in the beginning and 88.2MB in the end (delta: -58.5MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2023-11-06 21:58:11,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.69ms. Allocated memory is still 117.4MB. Free memory was 88.2MB in the beginning and 86.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:58:11,598 INFO L158 Benchmark]: Boogie Preprocessor took 81.47ms. Allocated memory is still 117.4MB. Free memory was 86.5MB in the beginning and 85.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:58:11,599 INFO L158 Benchmark]: RCFGBuilder took 593.55ms. Allocated memory is still 117.4MB. Free memory was 84.8MB in the beginning and 71.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 21:58:11,605 INFO L158 Benchmark]: TraceAbstraction took 1598.20ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 78.9MB in the end (delta: -7.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:58:11,610 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 65.0MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.61ms. Allocated memory was 65.0MB in the beginning and 117.4MB in the end (delta: 52.4MB). Free memory was 29.7MB in the beginning and 88.2MB in the end (delta: -58.5MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.69ms. Allocated memory is still 117.4MB. Free memory was 88.2MB in the beginning and 86.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.47ms. Allocated memory is still 117.4MB. Free memory was 86.5MB in the beginning and 85.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 593.55ms. Allocated memory is still 117.4MB. Free memory was 84.8MB in the beginning and 71.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1598.20ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 78.9MB in the end (delta: -7.5MB). There was no memory consumed. 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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 21:58:11,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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 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_b4191ceb-3f8e-4feb-bff7-d324d8cf7725/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.