./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16c784491c1bbafa07f396e2da5c8acc0901ffa28fc7d85f1b184d422e9c5e0e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:50:49,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:50:49,942 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:50:49,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:50:49,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:50:49,994 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:50:49,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:50:49,995 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:50:49,996 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:50:50,001 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:50:50,002 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:50:50,004 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:50:50,004 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:50:50,006 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:50:50,007 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:50:50,007 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:50:50,008 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:50:50,008 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:50:50,008 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:50:50,009 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:50:50,010 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:50:50,010 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:50:50,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:50:50,012 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:50:50,012 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:50:50,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:50:50,013 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:50:50,014 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:50:50,014 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:50:50,015 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:50:50,016 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:50:50,017 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:50:50,017 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:50:50,017 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:50:50,018 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:50:50,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:50:50,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:50:50,019 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:50:50,019 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:50:50,019 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:50:50,020 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:50:50,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:50:50,020 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:50:50,021 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:50:50,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:50:50,022 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16c784491c1bbafa07f396e2da5c8acc0901ffa28fc7d85f1b184d422e9c5e0e [2023-11-12 00:50:50,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:50:50,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:50:50,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:50:50,385 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:50:50,385 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:50:50,387 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2023-11-12 00:50:53,561 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:50:53,778 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:50:53,778 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2023-11-12 00:50:53,792 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/data/8190ea4a0/74bd75bbfb3a4ac88d35fb9db6b07593/FLAG7e8b77819 [2023-11-12 00:50:53,805 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/data/8190ea4a0/74bd75bbfb3a4ac88d35fb9db6b07593 [2023-11-12 00:50:53,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:50:53,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:50:53,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:50:53,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:50:53,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:50:53,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:50:53" (1/1) ... [2023-11-12 00:50:53,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bcd1140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:53, skipping insertion in model container [2023-11-12 00:50:53,823 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:50:53" (1/1) ... [2023-11-12 00:50:53,862 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:50:54,042 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_457301bd-3fc9-4c51-9486-981de562507d/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c[2700,2713] [2023-11-12 00:50:54,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:50:54,056 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:50:54,092 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_457301bd-3fc9-4c51-9486-981de562507d/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c[2700,2713] [2023-11-12 00:50:54,093 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:50:54,109 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:50:54,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:54 WrapperNode [2023-11-12 00:50:54,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:50:54,111 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:50:54,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:50:54,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:50:54,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:54" (1/1) ... [2023-11-12 00:50:54,128 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:54" (1/1) ... [2023-11-12 00:50:54,166 INFO L138 Inliner]: procedures = 18, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 249 [2023-11-12 00:50:54,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:50:54,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:50:54,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:50:54,168 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:50:54,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:54" (1/1) ... [2023-11-12 00:50:54,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:54" (1/1) ... [2023-11-12 00:50:54,191 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:54" (1/1) ... [2023-11-12 00:50:54,191 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:54" (1/1) ... [2023-11-12 00:50:54,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:54" (1/1) ... [2023-11-12 00:50:54,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:54" (1/1) ... [2023-11-12 00:50:54,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:54" (1/1) ... [2023-11-12 00:50:54,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:54" (1/1) ... [2023-11-12 00:50:54,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:50:54,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:50:54,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:50:54,218 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:50:54,219 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:54" (1/1) ... [2023-11-12 00:50:54,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:50:54,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:50:54,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:50:54,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:50:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:50:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:50:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:50:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:50:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-12 00:50:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-12 00:50:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:50:54,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:50:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:50:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-12 00:50:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:50:54,405 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:50:54,407 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:50:54,856 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:50:55,093 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:50:55,093 INFO L302 CfgBuilder]: Removed 12 assume(true) statements. [2023-11-12 00:50:55,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:50:55 BoogieIcfgContainer [2023-11-12 00:50:55,096 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:50:55,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:50:55,100 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:50:55,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:50:55,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:50:53" (1/3) ... [2023-11-12 00:50:55,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77fa7762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:50:55, skipping insertion in model container [2023-11-12 00:50:55,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:54" (2/3) ... [2023-11-12 00:50:55,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77fa7762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:50:55, skipping insertion in model container [2023-11-12 00:50:55,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:50:55" (3/3) ... [2023-11-12 00:50:55,107 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2023-11-12 00:50:55,125 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:50:55,125 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:50:55,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:50:55,181 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@124d63b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:50:55,182 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:50:55,185 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.75) internal successors, (56), 33 states have internal predecessors, (56), 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) [2023-11-12 00:50:55,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:50:55,191 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:50:55,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:50:55,192 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:50:55,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:50:55,197 INFO L85 PathProgramCache]: Analyzing trace with hash -207554494, now seen corresponding path program 1 times [2023-11-12 00:50:55,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:50:55,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288528444] [2023-11-12 00:50:55,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:50:55,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:50:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:50:55,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:50:55,374 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:50:55,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288528444] [2023-11-12 00:50:55,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288528444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:50:55,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:50:55,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:50:55,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340219266] [2023-11-12 00:50:55,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:50:55,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:50:55,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:50:55,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:50:55,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:50:55,422 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.75) internal successors, (56), 33 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-12 00:50:55,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:50:55,552 INFO L93 Difference]: Finished difference Result 67 states and 111 transitions. [2023-11-12 00:50:55,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:50:55,555 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2023-11-12 00:50:55,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:50:55,565 INFO L225 Difference]: With dead ends: 67 [2023-11-12 00:50:55,565 INFO L226 Difference]: Without dead ends: 32 [2023-11-12 00:50:55,569 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 [2023-11-12 00:50:55,576 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:50:55,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:50:55,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-12 00:50:55,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-12 00:50:55,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 31 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) [2023-11-12 00:50:55,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2023-11-12 00:50:55,617 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 8 [2023-11-12 00:50:55,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:50:55,617 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2023-11-12 00:50:55,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-12 00:50:55,618 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2023-11-12 00:50:55,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 00:50:55,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:50:55,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:50:55,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:50:55,619 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:50:55,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:50:55,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1274643035, now seen corresponding path program 1 times [2023-11-12 00:50:55,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:50:55,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125921597] [2023-11-12 00:50:55,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:50:55,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:50:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:50:55,781 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:50:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:50:55,907 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:50:55,908 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:50:55,911 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:50:55,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:50:55,917 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 00:50:55,921 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:50:55,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:50:55 BoogieIcfgContainer [2023-11-12 00:50:55,950 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:50:55,951 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:50:55,951 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:50:55,951 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:50:55,952 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:50:55" (3/4) ... [2023-11-12 00:50:55,955 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:50:55,956 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:50:55,957 INFO L158 Benchmark]: Toolchain (without parser) took 2148.11ms. Allocated memory was 165.7MB in the beginning and 228.6MB in the end (delta: 62.9MB). Free memory was 119.2MB in the beginning and 137.6MB in the end (delta: -18.4MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2023-11-12 00:50:55,959 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 165.7MB. Free memory is still 138.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:50:55,963 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.77ms. Allocated memory is still 165.7MB. Free memory was 118.9MB in the beginning and 106.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:50:55,965 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.94ms. Allocated memory is still 165.7MB. Free memory was 106.2MB in the beginning and 103.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:50:55,966 INFO L158 Benchmark]: Boogie Preprocessor took 50.05ms. Allocated memory is still 165.7MB. Free memory was 103.9MB in the beginning and 101.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:50:55,967 INFO L158 Benchmark]: RCFGBuilder took 878.49ms. Allocated memory was 165.7MB in the beginning and 228.6MB in the end (delta: 62.9MB). Free memory was 101.8MB in the beginning and 172.2MB in the end (delta: -70.4MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2023-11-12 00:50:55,967 INFO L158 Benchmark]: TraceAbstraction took 850.69ms. Allocated memory is still 228.6MB. Free memory was 171.1MB in the beginning and 137.6MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-12 00:50:55,968 INFO L158 Benchmark]: Witness Printer took 5.54ms. Allocated memory is still 228.6MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:50:55,971 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 165.7MB. Free memory is still 138.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.77ms. Allocated memory is still 165.7MB. Free memory was 118.9MB in the beginning and 106.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.94ms. Allocated memory is still 165.7MB. Free memory was 106.2MB in the beginning and 103.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.05ms. Allocated memory is still 165.7MB. Free memory was 103.9MB in the beginning and 101.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 878.49ms. Allocated memory was 165.7MB in the beginning and 228.6MB in the end (delta: 62.9MB). Free memory was 101.8MB in the beginning and 172.2MB in the end (delta: -70.4MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * TraceAbstraction took 850.69ms. Allocated memory is still 228.6MB. Free memory was 171.1MB in the beginning and 137.6MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 5.54ms. Allocated memory is still 228.6MB. Free memory is still 137.6MB. 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: 124]: 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 110, overapproximation of bitwiseOr at line 33, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of someUnaryFLOAToperation at line 119, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L118] float x = __VERIFIER_nondet_float(); [L119] float y = -0.0f; [L120] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [Zero_fmod={4:0}, \old(x)=6442450947, \old(y)=6442450945, one_fmod=1, x=6442450947, y=6442450945] [L23] ieee_float_shape_type gf_u; [L24] EXPR gf_u.value = (x) [L25] EXPR gf_u.word [L25] EXPR (hx) = gf_u.word [L22-L26] { ieee_float_shape_type gf_u; gf_u.value = (x); (hx) = gf_u.word; } VAL [Zero_fmod={4:0}, \old(x)=6442450947, \old(y)=6442450945, hx=-2147483648, one_fmod=1, x=6442450947, y=6442450945] [L28] ieee_float_shape_type gf_u; [L29] EXPR gf_u.value = (y) [L30] EXPR gf_u.word [L30] EXPR (hy) = gf_u.word [L27-L31] { ieee_float_shape_type gf_u; gf_u.value = (y); (hy) = gf_u.word; } VAL [Zero_fmod={4:0}, \old(x)=6442450947, \old(y)=6442450945, hx=-2147483648, hy=-2147483648, one_fmod=1, x=6442450947, y=6442450945] [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [Zero_fmod={4:0}, \old(x)=6442450947, \old(y)=6442450945, hx=0, hy=0, one_fmod=1, sx=-2147483648, x=6442450947, y=6442450945] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [Zero_fmod={4:0}, \old(x)=6442450947, \old(y)=6442450945, hx=0, hy=0, one_fmod=1, sx=-2147483648, x=6442450947, y=6442450945] [L120] RET, EXPR fmod_float(x, y) [L120] float res = fmod_float(x, y); [L123] CALL, EXPR isnan_float(res) [L110] return x != x; [L123] RET, EXPR isnan_float(res) [L123] COND TRUE !isnan_float(res) [L124] reach_error() VAL [Zero_fmod={4:0}, one_fmod=1, res=6442450946, x=6442450947, y=6442450945] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 00:50:56,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16c784491c1bbafa07f396e2da5c8acc0901ffa28fc7d85f1b184d422e9c5e0e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:50:58,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:50:58,909 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:50:58,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:50:58,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:50:58,980 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:50:58,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:50:58,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:50:58,983 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:50:58,988 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:50:58,989 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:50:58,990 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:50:58,990 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:50:58,992 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:50:58,993 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:50:58,993 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:50:58,995 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:50:58,995 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:50:58,996 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:50:58,997 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:50:58,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:50:58,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:50:58,999 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:50:58,999 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:50:59,000 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:50:59,001 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:50:59,002 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:50:59,002 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:50:59,003 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:50:59,003 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:50:59,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:50:59,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:50:59,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:50:59,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:50:59,006 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:50:59,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:50:59,007 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:50:59,007 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:50:59,008 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:50:59,009 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:50:59,009 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:50:59,010 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:50:59,010 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16c784491c1bbafa07f396e2da5c8acc0901ffa28fc7d85f1b184d422e9c5e0e [2023-11-12 00:50:59,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:50:59,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:50:59,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:50:59,484 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:50:59,484 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:50:59,486 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2023-11-12 00:51:02,632 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:51:02,940 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:51:02,942 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2023-11-12 00:51:02,956 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/data/2b880948c/c70b3a0d0a2b46d5a5befc64fcc312f0/FLAG3e9cfb745 [2023-11-12 00:51:02,984 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/data/2b880948c/c70b3a0d0a2b46d5a5befc64fcc312f0 [2023-11-12 00:51:02,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:51:02,992 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:51:02,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:51:02,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:51:03,000 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:51:03,001 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:51:02" (1/1) ... [2023-11-12 00:51:03,002 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16959630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:03, skipping insertion in model container [2023-11-12 00:51:03,003 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:51:02" (1/1) ... [2023-11-12 00:51:03,040 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:51:03,247 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_457301bd-3fc9-4c51-9486-981de562507d/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c[2700,2713] [2023-11-12 00:51:03,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:51:03,268 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:51:03,303 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_457301bd-3fc9-4c51-9486-981de562507d/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c[2700,2713] [2023-11-12 00:51:03,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:51:03,323 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:51:03,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:03 WrapperNode [2023-11-12 00:51:03,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:51:03,325 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:51:03,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:51:03,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:51:03,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:03" (1/1) ... [2023-11-12 00:51:03,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:03" (1/1) ... [2023-11-12 00:51:03,375 INFO L138 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 173 [2023-11-12 00:51:03,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:51:03,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:51:03,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:51:03,380 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:51:03,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:03" (1/1) ... [2023-11-12 00:51:03,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:03" (1/1) ... [2023-11-12 00:51:03,404 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:03" (1/1) ... [2023-11-12 00:51:03,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:03" (1/1) ... [2023-11-12 00:51:03,427 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:03" (1/1) ... [2023-11-12 00:51:03,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:03" (1/1) ... [2023-11-12 00:51:03,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:03" (1/1) ... [2023-11-12 00:51:03,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:03" (1/1) ... [2023-11-12 00:51:03,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:51:03,468 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:51:03,468 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:51:03,469 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:51:03,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:03" (1/1) ... [2023-11-12 00:51:03,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:51:03,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:51:03,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:51:03,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:51:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:51:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-12 00:51:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:51:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:51:03,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-12 00:51:03,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:51:03,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:51:03,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:51:03,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-12 00:51:03,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:51:03,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:51:03,746 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:51:03,748 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:51:06,372 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:51:06,379 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:51:06,379 INFO L302 CfgBuilder]: Removed 12 assume(true) statements. [2023-11-12 00:51:06,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:06 BoogieIcfgContainer [2023-11-12 00:51:06,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:51:06,384 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:51:06,385 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:51:06,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:51:06,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:51:02" (1/3) ... [2023-11-12 00:51:06,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e90035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:51:06, skipping insertion in model container [2023-11-12 00:51:06,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:03" (2/3) ... [2023-11-12 00:51:06,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e90035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:51:06, skipping insertion in model container [2023-11-12 00:51:06,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:06" (3/3) ... [2023-11-12 00:51:06,392 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2023-11-12 00:51:06,413 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:51:06,413 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:51:06,471 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:51:06,479 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@dce9518, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:51:06,480 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:51:06,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 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) [2023-11-12 00:51:06,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 00:51:06,493 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:06,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:06,494 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:51:06,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:06,504 INFO L85 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2023-11-12 00:51:06,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:51:06,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967922621] [2023-11-12 00:51:06,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:06,521 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:51:06,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:51:06,527 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:51:06,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 00:51:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:06,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:51:06,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:51:07,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:51:07,001 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:51:07,002 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:51:07,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967922621] [2023-11-12 00:51:07,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967922621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:07,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:07,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:51:07,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080132870] [2023-11-12 00:51:07,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:07,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:51:07,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:51:07,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:51:07,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:51:07,050 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 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) [2023-11-12 00:51:07,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:07,086 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2023-11-12 00:51:07,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:51:07,089 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 [2023-11-12 00:51:07,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:07,100 INFO L225 Difference]: With dead ends: 82 [2023-11-12 00:51:07,100 INFO L226 Difference]: Without dead ends: 39 [2023-11-12 00:51:07,104 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 [2023-11-12 00:51:07,110 INFO L413 NwaCegarLoop]: 57 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, 57 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 [2023-11-12 00:51:07,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:51:07,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-12 00:51:07,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-12 00:51:07,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 38 states have internal predecessors, (54), 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) [2023-11-12 00:51:07,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2023-11-12 00:51:07,159 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2023-11-12 00:51:07,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:07,159 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2023-11-12 00:51:07,160 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) [2023-11-12 00:51:07,160 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2023-11-12 00:51:07,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 00:51:07,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:07,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:07,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:51:07,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:51:07,380 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:51:07,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:07,381 INFO L85 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2023-11-12 00:51:07,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:51:07,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189468486] [2023-11-12 00:51:07,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:07,383 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:51:07,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:51:07,384 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:51:07,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:51:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:07,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 00:51:07,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:51:10,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:51:10,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:51:10,751 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:51:10,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189468486] [2023-11-12 00:51:10,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1189468486] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:10,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:10,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 00:51:10,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554633591] [2023-11-12 00:51:10,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:10,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 00:51:10,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:51:10,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 00:51:10,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:51:10,755 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 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) [2023-11-12 00:51:12,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:51:19,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:19,080 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2023-11-12 00:51:19,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 00:51:19,081 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 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 [2023-11-12 00:51:19,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:19,082 INFO L225 Difference]: With dead ends: 44 [2023-11-12 00:51:19,082 INFO L226 Difference]: Without dead ends: 39 [2023-11-12 00:51:19,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-12 00:51:19,085 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 95 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:19,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 191 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-12 00:51:19,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-12 00:51:19,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-12 00:51:19,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 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) [2023-11-12 00:51:19,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2023-11-12 00:51:19,095 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2023-11-12 00:51:19,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:19,096 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2023-11-12 00:51:19,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 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) [2023-11-12 00:51:19,108 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2023-11-12 00:51:19,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:51:19,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:19,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:19,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:51:19,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:51:19,321 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:51:19,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:19,322 INFO L85 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2023-11-12 00:51:19,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:51:19,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009078382] [2023-11-12 00:51:19,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:19,324 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:51:19,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:51:19,325 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:51:19,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:51:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:19,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 00:51:19,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:51:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:51:19,679 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:51:19,679 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:51:19,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009078382] [2023-11-12 00:51:19,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1009078382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:19,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:19,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:51:19,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929378297] [2023-11-12 00:51:19,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:19,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:51:19,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:51:19,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:51:19,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:51:19,683 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2023-11-12 00:51:19,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:19,794 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2023-11-12 00:51:19,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:51:19,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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 [2023-11-12 00:51:19,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:19,795 INFO L225 Difference]: With dead ends: 39 [2023-11-12 00:51:19,795 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:51:19,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:51:19,797 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:19,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 13 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:51:19,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:51:19,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:51:19,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-11-12 00:51:19,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:51:19,801 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2023-11-12 00:51:19,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:19,801 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:51:19,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2023-11-12 00:51:19,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:51:19,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:51:19,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:51:19,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/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)] Ended with exit code 0 [2023-11-12 00:51:20,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:51:20,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:51:20,123 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2023-11-12 00:51:20,123 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2023-11-12 00:51:20,123 INFO L895 garLoopResultBuilder]: At program point L27-1(lines 27 31) the Hoare annotation is: (and (= |ULTIMATE.start_fmod_float_~y#1| (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-12 00:51:20,124 INFO L899 garLoopResultBuilder]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2023-11-12 00:51:20,124 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 112 129) no Hoare annotation was computed. [2023-11-12 00:51:20,124 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2023-11-12 00:51:20,124 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2023-11-12 00:51:20,124 INFO L895 garLoopResultBuilder]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2023-11-12 00:51:20,125 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 00:51:20,125 INFO L899 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2023-11-12 00:51:20,125 INFO L899 garLoopResultBuilder]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2023-11-12 00:51:20,125 INFO L899 garLoopResultBuilder]: For program point fmod_float_returnLabel#1(lines 19 107) no Hoare annotation was computed. [2023-11-12 00:51:20,125 INFO L899 garLoopResultBuilder]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2023-11-12 00:51:20,126 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:51:20,126 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2023-11-12 00:51:20,126 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 105) no Hoare annotation was computed. [2023-11-12 00:51:20,126 INFO L899 garLoopResultBuilder]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2023-11-12 00:51:20,126 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (= |ULTIMATE.start_fmod_float_~y#1| (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-12 00:51:20,127 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2023-11-12 00:51:20,127 INFO L899 garLoopResultBuilder]: For program point L48(lines 19 107) no Hoare annotation was computed. [2023-11-12 00:51:20,127 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2023-11-12 00:51:20,127 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 00:51:20,127 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 126) no Hoare annotation was computed. [2023-11-12 00:51:20,127 INFO L899 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2023-11-12 00:51:20,128 INFO L895 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2023-11-12 00:51:20,128 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2023-11-12 00:51:20,128 INFO L899 garLoopResultBuilder]: For program point isnan_float_returnLabel#1(line 110) no Hoare annotation was computed. [2023-11-12 00:51:20,128 INFO L899 garLoopResultBuilder]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2023-11-12 00:51:20,129 INFO L895 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2023-11-12 00:51:20,129 INFO L899 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2023-11-12 00:51:20,129 INFO L895 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2023-11-12 00:51:20,129 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:51:20,129 INFO L899 garLoopResultBuilder]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2023-11-12 00:51:20,129 INFO L899 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2023-11-12 00:51:20,130 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2023-11-12 00:51:20,130 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2023-11-12 00:51:20,130 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2023-11-12 00:51:20,130 INFO L899 garLoopResultBuilder]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2023-11-12 00:51:20,130 INFO L895 garLoopResultBuilder]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2023-11-12 00:51:20,130 INFO L899 garLoopResultBuilder]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2023-11-12 00:51:20,131 INFO L899 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2023-11-12 00:51:20,131 INFO L895 garLoopResultBuilder]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2023-11-12 00:51:20,138 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-12 00:51:20,140 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:51:20,162 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-12 00:51:20,163 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 00:51:20,164 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-12 00:51:20,164 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 00:51:20,164 ERROR L464 ceAbstractionStarter]: Failed to backtranslate (and (= |ULTIMATE.start_fmod_float_~y#1| (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-12 00:51:20,165 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-12 00:51:20,165 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 00:51:20,165 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-12 00:51:20,165 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 00:51:20,166 ERROR L464 ceAbstractionStarter]: Failed to backtranslate (and (= |ULTIMATE.start_fmod_float_~y#1| (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-12 00:51:20,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:51:20 BoogieIcfgContainer [2023-11-12 00:51:20,167 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:51:20,173 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:51:20,173 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:51:20,173 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:51:20,174 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:06" (3/4) ... [2023-11-12 00:51:20,176 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:51:20,190 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-12 00:51:20,190 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-12 00:51:20,191 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-12 00:51:20,191 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:51:20,280 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:51:20,285 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:51:20,285 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:51:20,286 INFO L158 Benchmark]: Toolchain (without parser) took 17294.01ms. Allocated memory is still 83.9MB. Free memory was 60.3MB in the beginning and 36.9MB in the end (delta: 23.4MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2023-11-12 00:51:20,286 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 56.6MB. Free memory was 32.9MB in the beginning and 32.9MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:51:20,287 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.75ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 47.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:51:20,287 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.62ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 45.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:51:20,288 INFO L158 Benchmark]: Boogie Preprocessor took 90.72ms. Allocated memory is still 83.9MB. Free memory was 45.0MB in the beginning and 43.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:51:20,288 INFO L158 Benchmark]: RCFGBuilder took 2914.12ms. Allocated memory is still 83.9MB. Free memory was 43.0MB in the beginning and 46.6MB in the end (delta: -3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:51:20,289 INFO L158 Benchmark]: TraceAbstraction took 13783.23ms. Allocated memory is still 83.9MB. Free memory was 45.9MB in the beginning and 41.1MB in the end (delta: 4.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2023-11-12 00:51:20,289 INFO L158 Benchmark]: Witness Printer took 112.40ms. Allocated memory is still 83.9MB. Free memory was 41.1MB in the beginning and 36.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:51:20,292 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 56.6MB. Free memory was 32.9MB in the beginning and 32.9MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.75ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 47.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.62ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 45.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.72ms. Allocated memory is still 83.9MB. Free memory was 45.0MB in the beginning and 43.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2914.12ms. Allocated memory is still 83.9MB. Free memory was 43.0MB in the beginning and 46.6MB in the end (delta: -3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 13783.23ms. Allocated memory is still 83.9MB. Free memory was 45.9MB in the beginning and 41.1MB in the end (delta: 4.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Witness Printer took 112.40ms. Allocated memory is still 83.9MB. Free memory was 41.1MB in the beginning and 36.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated * 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 - PositiveResult [Line: 124]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 98 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 261 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 150 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 111 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 10 NumberOfFragments, 22 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 2 QuantifiedInterpolants, 137 SizeOfPredicates, 15 NumberOfNonLiveVariables, 174 ConjunctsInSsa, 21 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2023-11-12 00:51:20,321 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-12 00:51:20,322 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 00:51:20,322 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-12 00:51:20,322 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated Derived loop invariant: NULL - InvariantResult [Line: 27]: Loop Invariant [2023-11-12 00:51:20,323 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-12 00:51:20,323 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 00:51:20,323 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-12 00:51:20,323 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated Derived loop invariant: NULL - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-12 00:51:20,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457301bd-3fc9-4c51-9486-981de562507d/bin/utaipan-verify-NcY6lQBIFX/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: TRUE