./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5 --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 59d0560b101a1a446649456c356a26c615f3850e7b7d16baa2e50b6bf6dee850 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:35:29,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:35:29,290 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-21 19:35:29,295 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:35:29,296 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:35:29,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:35:29,334 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:35:29,335 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:35:29,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:35:29,338 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:35:29,339 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:35:29,341 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:35:29,341 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:35:29,344 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:35:29,345 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:35:29,345 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:35:29,347 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:35:29,351 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:35:29,352 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:35:29,353 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:35:29,353 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:35:29,354 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:35:29,355 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:35:29,356 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:35:29,357 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:35:29,357 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:35:29,358 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:35:29,358 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:35:29,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:35:29,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:35:29,361 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:35:29,361 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:35:29,361 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:35:29,362 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:35:29,362 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:35:29,362 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:35:29,363 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:35:29,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:35:29,363 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:35:29,364 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:35:29,365 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:35:29,365 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:35:29,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:35:29,366 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:35:29,366 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:35:29,367 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:35:29,367 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:35:29,367 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_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59d0560b101a1a446649456c356a26c615f3850e7b7d16baa2e50b6bf6dee850 [2023-11-21 19:35:29,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:35:29,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:35:29,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:35:29,737 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:35:29,738 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:35:29,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c [2023-11-21 19:35:33,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:35:33,457 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:35:33,458 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c [2023-11-21 19:35:33,469 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/data/f0804114d/cdfe9f8e767a437898c25f56660ca133/FLAGd1558ad35 [2023-11-21 19:35:33,492 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/data/f0804114d/cdfe9f8e767a437898c25f56660ca133 [2023-11-21 19:35:33,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:35:33,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:35:33,508 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:35:33,509 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:35:33,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:35:33,518 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:35:33" (1/1) ... [2023-11-21 19:35:33,520 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31b12f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:33, skipping insertion in model container [2023-11-21 19:35:33,520 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:35:33" (1/1) ... [2023-11-21 19:35:33,582 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:35:33,914 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_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c[6891,6904] [2023-11-21 19:35:33,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:35:33,939 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:35:34,010 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_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c[6891,6904] [2023-11-21 19:35:34,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:35:34,044 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:35:34,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:34 WrapperNode [2023-11-21 19:35:34,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:35:34,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:35:34,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:35:34,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:35:34,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:34" (1/1) ... [2023-11-21 19:35:34,069 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:34" (1/1) ... [2023-11-21 19:35:34,120 INFO L138 Inliner]: procedures = 21, calls = 98, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 393 [2023-11-21 19:35:34,121 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:35:34,122 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:35:34,122 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:35:34,122 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:35:34,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:34" (1/1) ... [2023-11-21 19:35:34,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:34" (1/1) ... [2023-11-21 19:35:34,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:34" (1/1) ... [2023-11-21 19:35:34,144 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:34" (1/1) ... [2023-11-21 19:35:34,184 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:34" (1/1) ... [2023-11-21 19:35:34,201 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:34" (1/1) ... [2023-11-21 19:35:34,210 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:34" (1/1) ... [2023-11-21 19:35:34,215 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:34" (1/1) ... [2023-11-21 19:35:34,230 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:35:34,236 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:35:34,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:35:34,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:35:34,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:34" (1/1) ... [2023-11-21 19:35:34,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:35:34,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:35:34,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:35:34,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:35:34,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:35:34,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:35:34,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:35:34,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-21 19:35:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:35:34,338 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2023-11-21 19:35:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2023-11-21 19:35:34,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-21 19:35:34,339 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2023-11-21 19:35:34,339 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2023-11-21 19:35:34,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:35:34,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:35:34,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:35:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-21 19:35:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:35:34,513 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:35:34,516 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:35:35,329 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:35:35,718 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:35:35,719 INFO L308 CfgBuilder]: Removed 20 assume(true) statements. [2023-11-21 19:35:35,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:35:35 BoogieIcfgContainer [2023-11-21 19:35:35,721 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:35:35,724 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:35:35,725 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:35:35,728 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:35:35,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:35:33" (1/3) ... [2023-11-21 19:35:35,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7fd264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:35:35, skipping insertion in model container [2023-11-21 19:35:35,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:34" (2/3) ... [2023-11-21 19:35:35,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7fd264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:35:35, skipping insertion in model container [2023-11-21 19:35:35,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:35:35" (3/3) ... [2023-11-21 19:35:35,734 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684b.c [2023-11-21 19:35:35,754 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:35:35,755 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:35:35,803 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:35:35,809 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;@4ee41649, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:35:35,810 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:35:35,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 72 states have (on average 1.6944444444444444) internal successors, (122), 73 states have internal predecessors, (122), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 19:35:35,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 19:35:35,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:35:35,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:35:35,828 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:35:35,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:35:35,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1693628887, now seen corresponding path program 1 times [2023-11-21 19:35:35,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:35:35,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536598173] [2023-11-21 19:35:35,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:35:35,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:35:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:35:36,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:35:36,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:35:36,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536598173] [2023-11-21 19:35:36,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536598173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:35:36,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:35:36,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:35:36,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328665215] [2023-11-21 19:35:36,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:35:36,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 19:35:36,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:35:36,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 19:35:36,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 19:35:36,190 INFO L87 Difference]: Start difference. First operand has 80 states, 72 states have (on average 1.6944444444444444) internal successors, (122), 73 states have internal predecessors, (122), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2023-11-21 19:35:36,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:35:36,330 INFO L93 Difference]: Finished difference Result 159 states and 263 transitions. [2023-11-21 19:35:36,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:35:36,332 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 [2023-11-21 19:35:36,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:35:36,344 INFO L225 Difference]: With dead ends: 159 [2023-11-21 19:35:36,344 INFO L226 Difference]: Without dead ends: 77 [2023-11-21 19:35:36,349 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 [2023-11-21 19:35:36,354 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:35:36,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:35:36,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-21 19:35:36,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-21 19:35:36,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 70 states have internal predecessors, (97), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 19:35:36,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 105 transitions. [2023-11-21 19:35:36,429 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 105 transitions. Word has length 13 [2023-11-21 19:35:36,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:35:36,430 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 105 transitions. [2023-11-21 19:35:36,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2023-11-21 19:35:36,431 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 105 transitions. [2023-11-21 19:35:36,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 19:35:36,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:35:36,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:35:36,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:35:36,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:35:36,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:35:36,437 INFO L85 PathProgramCache]: Analyzing trace with hash 836796958, now seen corresponding path program 1 times [2023-11-21 19:35:36,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:35:36,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055277853] [2023-11-21 19:35:36,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:35:36,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:35:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:35:36,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:35:36,619 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:35:36,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055277853] [2023-11-21 19:35:36,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055277853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:35:36,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:35:36,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:35:36,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020461012] [2023-11-21 19:35:36,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:35:36,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:35:36,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:35:36,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:35:36,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:35:36,623 INFO L87 Difference]: Start difference. First operand 77 states and 105 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-21 19:35:36,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:35:36,744 INFO L93 Difference]: Finished difference Result 146 states and 201 transitions. [2023-11-21 19:35:36,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:35:36,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2023-11-21 19:35:36,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:35:36,751 INFO L225 Difference]: With dead ends: 146 [2023-11-21 19:35:36,751 INFO L226 Difference]: Without dead ends: 77 [2023-11-21 19:35:36,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:35:36,760 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:35:36,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 175 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:35:36,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-21 19:35:36,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-21 19:35:36,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 70 states have internal predecessors, (96), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 19:35:36,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 104 transitions. [2023-11-21 19:35:36,790 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 104 transitions. Word has length 16 [2023-11-21 19:35:36,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:35:36,790 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 104 transitions. [2023-11-21 19:35:36,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-21 19:35:36,791 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 104 transitions. [2023-11-21 19:35:36,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 19:35:36,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:35:36,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:35:36,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:35:36,793 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:35:36,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:35:36,795 INFO L85 PathProgramCache]: Analyzing trace with hash 860298889, now seen corresponding path program 1 times [2023-11-21 19:35:36,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:35:36,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002401957] [2023-11-21 19:35:36,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:35:36,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:35:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:35:37,189 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 19:35:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:35:37,582 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-21 19:35:37,582 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 19:35:37,584 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 19:35:37,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 19:35:37,590 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-21 19:35:37,595 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:35:37,652 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short58 could not be translated [2023-11-21 19:35:37,656 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret56 could not be translated [2023-11-21 19:35:37,657 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret57 could not be translated [2023-11-21 19:35:37,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet31 could not be translated [2023-11-21 19:35:37,670 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-21 19:35:37,671 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet33 could not be translated [2023-11-21 19:35:37,672 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short34 could not be translated [2023-11-21 19:35:37,673 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated [2023-11-21 19:35:37,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:35:37 BoogieIcfgContainer [2023-11-21 19:35:37,690 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:35:37,699 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:35:37,700 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:35:37,700 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:35:37,701 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:35:35" (3/4) ... [2023-11-21 19:35:37,703 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 19:35:37,704 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:35:37,706 INFO L158 Benchmark]: Toolchain (without parser) took 4202.99ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 113.1MB in the beginning and 139.0MB in the end (delta: -26.0MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2023-11-21 19:35:37,706 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:35:37,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.78ms. Allocated memory is still 151.0MB. Free memory was 112.8MB in the beginning and 112.2MB in the end (delta: 625.8kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 19:35:37,720 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.20ms. Allocated memory is still 151.0MB. Free memory was 112.2MB in the beginning and 108.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 19:35:37,720 INFO L158 Benchmark]: Boogie Preprocessor took 113.41ms. Allocated memory is still 151.0MB. Free memory was 108.8MB in the beginning and 105.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:35:37,723 INFO L158 Benchmark]: RCFGBuilder took 1485.50ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 105.7MB in the beginning and 108.9MB in the end (delta: -3.2MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2023-11-21 19:35:37,724 INFO L158 Benchmark]: TraceAbstraction took 1973.49ms. Allocated memory is still 182.5MB. Free memory was 108.0MB in the beginning and 140.1MB in the end (delta: -32.1MB). Peak memory consumption was 59.9MB. Max. memory is 16.1GB. [2023-11-21 19:35:37,725 INFO L158 Benchmark]: Witness Printer took 5.51ms. Allocated memory is still 182.5MB. Free memory was 140.1MB in the beginning and 139.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:35:37,728 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.78ms. Allocated memory is still 151.0MB. Free memory was 112.8MB in the beginning and 112.2MB in the end (delta: 625.8kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.20ms. Allocated memory is still 151.0MB. Free memory was 112.2MB in the beginning and 108.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 113.41ms. Allocated memory is still 151.0MB. Free memory was 108.8MB in the beginning and 105.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1485.50ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 105.7MB in the beginning and 108.9MB in the end (delta: -3.2MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1973.49ms. Allocated memory is still 182.5MB. Free memory was 108.0MB in the beginning and 140.1MB in the end (delta: -32.1MB). Peak memory consumption was 59.9MB. Max. memory is 16.1GB. * Witness Printer took 5.51ms. Allocated memory is still 182.5MB. Free memory was 140.1MB in the beginning and 139.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 288]: 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 bitwiseOr at line 163, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 287. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L278] double x = __VERIFIER_nondet_double(); [L279] double y = -1.0 / 0.0; [L282] CALL, EXPR isfinite_double(x) [L262] __int32_t hx; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, zero_atan2=0] [L264] ieee_double_shape_type gh_u; [L265] EXPR gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] EXPR (hx) = gh_u.parts.msw [L263-L267] { ieee_double_shape_type gh_u; gh_u.value = (x); (hx) = gh_u.parts.msw; } VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1048577, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, zero_atan2=0] [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L282] RET, EXPR isfinite_double(x) [L282] isfinite_double(x) && isinf_double(y) [L282] CALL, EXPR isinf_double(y) [L248] __int32_t hx, lx; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L250] ieee_double_shape_type ew_u; [L251] EXPR ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] EXPR (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] EXPR (lx) = ew_u.parts.lsw [L249-L254] { ieee_double_shape_type ew_u; ew_u.value = (x); (hx) = ew_u.parts.msw; (lx) = ew_u.parts.lsw; } VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2147483647, lx=1, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L255] hx &= 0x7fffffff [L256] EXPR lx | (-lx) [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] EXPR hx | (-hx) [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L282] RET, EXPR isinf_double(y) [L282] isfinite_double(x) && isinf_double(y) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L282] COND TRUE isfinite_double(x) && isinf_double(y) [L284] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] EXPR ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] EXPR (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] EXPR (lx) = ew_u.parts.lsw [L149-L154] { ieee_double_shape_type ew_u; ew_u.value = (x); (hx) = ew_u.parts.msw; (lx) = ew_u.parts.lsw; } VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2147483647, lx=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L155] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2147483647, ix=2147483647, lx=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] EXPR ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] EXPR (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] EXPR (ly) = ew_u.parts.lsw [L156-L161] { ieee_double_shape_type ew_u; ew_u.value = (y); (hy) = ew_u.parts.msw; (ly) = ew_u.parts.lsw; } VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2147483647, hy=-1048576, ix=2147483647, lx=0, ly=8589934593, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L162] iy = hy & 0x7fffffff [L163] EXPR lx | -lx [L163] EXPR ix | ((lx | -lx) >> 31) [L163-L164] ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2147483647, hy=-1048576, ix=2147483647, iy=2146435072, lx=0, ly=8589934593, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2147483647, hy=-1048576, ix=2147483647, iy=2146435072, lx=0, ly=8589934593, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L284] RET, EXPR __ieee754_atan2(y, x) [L284] double res = __ieee754_atan2(y, x); [L287] COND TRUE res != -pi_o_2 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L288] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 267 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 181 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2023-11-21 19:35:37,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/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_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5 --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 59d0560b101a1a446649456c356a26c615f3850e7b7d16baa2e50b6bf6dee850 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:35:40,523 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:35:40,664 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-21 19:35:40,674 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:35:40,674 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:35:40,720 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:35:40,721 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:35:40,722 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:35:40,723 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:35:40,728 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:35:40,729 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:35:40,729 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:35:40,730 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:35:40,731 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:35:40,732 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:35:40,732 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:35:40,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:35:40,734 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:35:40,734 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:35:40,735 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:35:40,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:35:40,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:35:40,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:35:40,738 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:35:40,738 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 19:35:40,739 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 19:35:40,739 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 19:35:40,739 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:35:40,740 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:35:40,740 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:35:40,742 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:35:40,742 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 19:35:40,742 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:35:40,743 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:35:40,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:35:40,744 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:35:40,744 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:35:40,744 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:35:40,745 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 19:35:40,746 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 19:35:40,746 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:35:40,746 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:35:40,747 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:35:40,747 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:35:40,748 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_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59d0560b101a1a446649456c356a26c615f3850e7b7d16baa2e50b6bf6dee850 [2023-11-21 19:35:41,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:35:41,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:35:41,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:35:41,181 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:35:41,182 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:35:41,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c [2023-11-21 19:35:44,364 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:35:44,706 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:35:44,707 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c [2023-11-21 19:35:44,722 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/data/7d525d6b5/ccdafb4c127a459682582bb4d87caf0d/FLAG2a372a787 [2023-11-21 19:35:44,745 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/data/7d525d6b5/ccdafb4c127a459682582bb4d87caf0d [2023-11-21 19:35:44,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:35:44,752 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:35:44,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:35:44,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:35:44,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:35:44,762 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:35:44" (1/1) ... [2023-11-21 19:35:44,763 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48d3724b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:44, skipping insertion in model container [2023-11-21 19:35:44,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:35:44" (1/1) ... [2023-11-21 19:35:44,821 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:35:45,145 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_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c[6891,6904] [2023-11-21 19:35:45,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:35:45,178 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:35:45,244 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_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c[6891,6904] [2023-11-21 19:35:45,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:35:45,269 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:35:45,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:45 WrapperNode [2023-11-21 19:35:45,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:35:45,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:35:45,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:35:45,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:35:45,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:45" (1/1) ... [2023-11-21 19:35:45,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:45" (1/1) ... [2023-11-21 19:35:45,331 INFO L138 Inliner]: procedures = 24, calls = 98, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 276 [2023-11-21 19:35:45,332 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:35:45,333 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:35:45,333 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:35:45,333 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:35:45,343 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:45" (1/1) ... [2023-11-21 19:35:45,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:45" (1/1) ... [2023-11-21 19:35:45,353 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:45" (1/1) ... [2023-11-21 19:35:45,353 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:45" (1/1) ... [2023-11-21 19:35:45,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:45" (1/1) ... [2023-11-21 19:35:45,381 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:45" (1/1) ... [2023-11-21 19:35:45,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:45" (1/1) ... [2023-11-21 19:35:45,389 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:45" (1/1) ... [2023-11-21 19:35:45,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:35:45,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:35:45,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:35:45,435 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:35:45,436 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:45" (1/1) ... [2023-11-21 19:35:45,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:35:45,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:35:45,519 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:35:45,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:35:45,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:35:45,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-21 19:35:45,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-21 19:35:45,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 19:35:45,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:35:45,555 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2023-11-21 19:35:45,556 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2023-11-21 19:35:45,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-11-21 19:35:45,556 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2023-11-21 19:35:45,556 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2023-11-21 19:35:45,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 19:35:45,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:35:45,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:35:45,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 19:35:45,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:35:45,747 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:35:45,750 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:36:13,861 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:36:14,092 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:36:14,092 INFO L308 CfgBuilder]: Removed 20 assume(true) statements. [2023-11-21 19:36:14,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:36:14 BoogieIcfgContainer [2023-11-21 19:36:14,096 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:36:14,099 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:36:14,099 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:36:14,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:36:14,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:35:44" (1/3) ... [2023-11-21 19:36:14,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28abed12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:36:14, skipping insertion in model container [2023-11-21 19:36:14,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:45" (2/3) ... [2023-11-21 19:36:14,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28abed12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:36:14, skipping insertion in model container [2023-11-21 19:36:14,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:36:14" (3/3) ... [2023-11-21 19:36:14,111 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684b.c [2023-11-21 19:36:14,135 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:36:14,135 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:36:14,216 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:36:14,225 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;@56c8683a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:36:14,225 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:36:14,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 71 states have (on average 1.704225352112676) internal successors, (121), 72 states have internal predecessors, (121), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 19:36:14,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 19:36:14,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:36:14,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:36:14,245 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:36:14,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:36:14,256 INFO L85 PathProgramCache]: Analyzing trace with hash -953600321, now seen corresponding path program 1 times [2023-11-21 19:36:14,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:36:14,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066246762] [2023-11-21 19:36:14,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:36:14,277 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 [2023-11-21 19:36:14,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:36:14,281 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:36:14,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:36:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:36:14,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 19:36:14,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:36:14,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:36:14,951 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:36:14,952 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:36:14,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066246762] [2023-11-21 19:36:14,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066246762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:36:14,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:36:14,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:36:14,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412234978] [2023-11-21 19:36:14,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:36:14,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 19:36:14,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:36:15,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 19:36:15,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 19:36:15,034 INFO L87 Difference]: Start difference. First operand has 79 states, 71 states have (on average 1.704225352112676) internal successors, (121), 72 states have internal predecessors, (121), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2023-11-21 19:36:17,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 19:36:22,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:36:24,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 19:36:24,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:36:24,838 INFO L93 Difference]: Finished difference Result 157 states and 261 transitions. [2023-11-21 19:36:24,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:36:24,988 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 [2023-11-21 19:36:24,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:36:24,996 INFO L225 Difference]: With dead ends: 157 [2023-11-21 19:36:24,996 INFO L226 Difference]: Without dead ends: 76 [2023-11-21 19:36:24,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 19:36:25,003 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-11-21 19:36:25,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2023-11-21 19:36:25,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-21 19:36:25,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-11-21 19:36:25,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 69 states have (on average 1.391304347826087) internal successors, (96), 69 states have internal predecessors, (96), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 19:36:25,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 104 transitions. [2023-11-21 19:36:25,045 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 104 transitions. Word has length 13 [2023-11-21 19:36:25,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:36:25,046 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 104 transitions. [2023-11-21 19:36:25,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2023-11-21 19:36:25,046 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 104 transitions. [2023-11-21 19:36:25,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 19:36:25,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:36:25,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:36:25,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:36:25,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:36:25,258 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:36:25,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:36:25,259 INFO L85 PathProgramCache]: Analyzing trace with hash 548622482, now seen corresponding path program 1 times [2023-11-21 19:36:25,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:36:25,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903019440] [2023-11-21 19:36:25,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:36:25,260 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 [2023-11-21 19:36:25,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:36:25,261 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:36:25,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57e0df1-e0e3-48cf-8635-9ac78c3fc542/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:36:25,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:36:25,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 19:36:25,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:36:25,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:36:25,915 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:36:25,916 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:36:25,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903019440] [2023-11-21 19:36:25,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903019440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:36:25,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:36:25,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:36:25,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430292210] [2023-11-21 19:36:25,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:36:25,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:36:25,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:36:25,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:36:25,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:36:25,920 INFO L87 Difference]: Start difference. First operand 76 states and 104 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-21 19:36:28,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 19:36:30,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 19:36:31,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []