./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/sin_0_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/sin_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire --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 9bc9cefebc94b707df6d8b29bfa22267d2ac4d88a42196368c7217e8b23b960f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:12:53,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:12:53,986 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:12:53,992 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:12:53,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:12:54,020 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:12:54,021 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:12:54,021 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:12:54,022 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:12:54,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:12:54,023 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:12:54,024 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:12:54,024 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:12:54,025 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:12:54,025 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:12:54,026 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:12:54,026 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:12:54,032 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:12:54,032 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:12:54,033 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:12:54,033 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:12:54,038 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:12:54,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:12:54,039 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:12:54,039 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:12:54,040 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:12:54,040 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:12:54,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:12:54,041 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:12:54,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:12:54,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:12:54,042 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:12:54,042 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:12:54,043 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:12:54,043 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:12:54,044 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:12:54,044 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:12:54,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:54,045 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:12:54,045 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:12:54,046 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:12:54,048 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:12:54,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:12:54,048 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:12:54,049 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:12:54,049 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:12:54,049 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:12:54,049 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_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bc9cefebc94b707df6d8b29bfa22267d2ac4d88a42196368c7217e8b23b960f [2023-11-23 21:12:54,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:12:54,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:12:54,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:12:54,414 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:12:54,415 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:12:54,416 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/neural-networks/sin_0_safe.c-amalgamation.i [2023-11-23 21:12:57,566 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:12:57,900 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:12:57,901 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/sv-benchmarks/c/neural-networks/sin_0_safe.c-amalgamation.i [2023-11-23 21:12:57,931 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/data/440da6ab4/6d2f8a5a8a6044f1bb1df888c34ed4b3/FLAG0b2debbd4 [2023-11-23 21:12:57,946 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/data/440da6ab4/6d2f8a5a8a6044f1bb1df888c34ed4b3 [2023-11-23 21:12:57,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:12:57,951 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:12:57,952 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:57,953 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:12:57,958 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:12:57,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:57" (1/1) ... [2023-11-23 21:12:57,961 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f66a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:57, skipping insertion in model container [2023-11-23 21:12:57,961 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:57" (1/1) ... [2023-11-23 21:12:58,039 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:12:58,252 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:12:58,822 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-23 21:12:58,822 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isinf_sign [2023-11-23 21:12:58,827 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_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/sv-benchmarks/c/neural-networks/sin_0_safe.c-amalgamation.i[63028,63041] [2023-11-23 21:12:58,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:58,845 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:12:58,881 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:12:58,918 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-23 21:12:58,924 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isinf_sign [2023-11-23 21:12:58,926 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_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/sv-benchmarks/c/neural-networks/sin_0_safe.c-amalgamation.i[63028,63041] [2023-11-23 21:12:58,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:59,111 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:12:59,112 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:12:59,112 WARN L675 CHandler]: The function __builtin_isinf_sign is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:12:59,120 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:12:59,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:59 WrapperNode [2023-11-23 21:12:59,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:59,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:59,122 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:12:59,122 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:12:59,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:59" (1/1) ... [2023-11-23 21:12:59,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:59" (1/1) ... [2023-11-23 21:12:59,177 INFO L138 Inliner]: procedures = 560, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2023-11-23 21:12:59,177 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:59,178 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:12:59,179 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:12:59,179 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:12:59,188 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:59" (1/1) ... [2023-11-23 21:12:59,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:59" (1/1) ... [2023-11-23 21:12:59,191 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:59" (1/1) ... [2023-11-23 21:12:59,192 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:59" (1/1) ... [2023-11-23 21:12:59,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:59" (1/1) ... [2023-11-23 21:12:59,220 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:59" (1/1) ... [2023-11-23 21:12:59,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:59" (1/1) ... [2023-11-23 21:12:59,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:59" (1/1) ... [2023-11-23 21:12:59,225 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:12:59,226 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:12:59,226 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:12:59,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:12:59,227 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:59" (1/1) ... [2023-11-23 21:12:59,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:59,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:59,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:12:59,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:12:59,309 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isinf_sign [2023-11-23 21:12:59,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:12:59,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:12:59,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:12:59,310 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-23 21:12:59,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:12:59,478 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:12:59,488 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:12:59,636 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:12:59,785 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:12:59,786 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:12:59,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:59 BoogieIcfgContainer [2023-11-23 21:12:59,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:12:59,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:12:59,794 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:12:59,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:12:59,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:12:57" (1/3) ... [2023-11-23 21:12:59,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63491bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:59, skipping insertion in model container [2023-11-23 21:12:59,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:59" (2/3) ... [2023-11-23 21:12:59,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63491bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:59, skipping insertion in model container [2023-11-23 21:12:59,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:59" (3/3) ... [2023-11-23 21:12:59,806 INFO L112 eAbstractionObserver]: Analyzing ICFG sin_0_safe.c-amalgamation.i [2023-11-23 21:12:59,830 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:12:59,831 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:12:59,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:12:59,914 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;@91cfcef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:12:59,915 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:12:59,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-11-23 21:12:59,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-23 21:12:59,927 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:59,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-23 21:12:59,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:59,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:59,938 INFO L85 PathProgramCache]: Analyzing trace with hash 64003, now seen corresponding path program 1 times [2023-11-23 21:12:59,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:59,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299734174] [2023-11-23 21:12:59,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:59,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:13:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:13:00,097 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:13:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:13:00,144 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:13:00,145 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:13:00,147 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:13:00,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:13:00,154 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:13:00,159 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:13:00,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:13:00 BoogieIcfgContainer [2023-11-23 21:13:00,175 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:13:00,176 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:13:00,176 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:13:00,176 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:13:00,177 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:59" (3/4) ... [2023-11-23 21:13:00,180 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:13:00,181 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:13:00,182 INFO L158 Benchmark]: Toolchain (without parser) took 2231.45ms. Allocated memory was 138.4MB in the beginning and 172.0MB in the end (delta: 33.6MB). Free memory was 91.7MB in the beginning and 121.7MB in the end (delta: -30.0MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-11-23 21:13:00,183 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 61.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:13:00,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1168.75ms. Allocated memory is still 138.4MB. Free memory was 91.4MB in the beginning and 72.1MB in the end (delta: 19.3MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2023-11-23 21:13:00,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.95ms. Allocated memory is still 138.4MB. Free memory was 72.1MB in the beginning and 69.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:13:00,185 INFO L158 Benchmark]: Boogie Preprocessor took 46.53ms. Allocated memory is still 138.4MB. Free memory was 69.9MB in the beginning and 68.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:13:00,186 INFO L158 Benchmark]: RCFGBuilder took 564.52ms. Allocated memory was 138.4MB in the beginning and 172.0MB in the end (delta: 33.6MB). Free memory was 68.6MB in the beginning and 136.4MB in the end (delta: -67.8MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-11-23 21:13:00,187 INFO L158 Benchmark]: TraceAbstraction took 382.54ms. Allocated memory is still 172.0MB. Free memory was 135.4MB in the beginning and 122.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:13:00,187 INFO L158 Benchmark]: Witness Printer took 4.96ms. Allocated memory is still 172.0MB. Free memory was 122.8MB in the beginning and 121.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:13:00,191 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 61.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1168.75ms. Allocated memory is still 138.4MB. Free memory was 91.4MB in the beginning and 72.1MB in the end (delta: 19.3MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.95ms. Allocated memory is still 138.4MB. Free memory was 72.1MB in the beginning and 69.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.53ms. Allocated memory is still 138.4MB. Free memory was 69.9MB in the beginning and 68.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 564.52ms. Allocated memory was 138.4MB in the beginning and 172.0MB in the end (delta: 33.6MB). Free memory was 68.6MB in the beginning and 136.4MB in the end (delta: -67.8MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * TraceAbstraction took 382.54ms. Allocated memory is still 172.0MB. Free memory was 135.4MB in the beginning and 122.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.96ms. Allocated memory is still 172.0MB. Free memory was 122.8MB in the beginning and 121.7MB 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.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: 850]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 850, overapproximation of sinf at line 849. Possible FailurePath: [L847] float x = __VERIFIER_nondet_float(); [L848] EXPR !__builtin_isnan (x) && !__builtin_isinf_sign (x) [L848] EXPR !__builtin_isnan (x) && !__builtin_isinf_sign (x) [L848] COND FALSE !(!(!__builtin_isnan (x) && !__builtin_isinf_sign (x))) [L849] float y = sinf(x); [L850] COND TRUE !(__builtin_isgreaterequal(y, -1.0f)) [L850] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2023-11-23 21:13:00,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/sin_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire --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 9bc9cefebc94b707df6d8b29bfa22267d2ac4d88a42196368c7217e8b23b960f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:13:03,012 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:13:03,142 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:13:03,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:13:03,153 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:13:03,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:13:03,209 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:13:03,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:13:03,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:13:03,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:13:03,217 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:13:03,218 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:13:03,218 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:13:03,220 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:13:03,221 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:13:03,221 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:13:03,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:13:03,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:13:03,223 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:13:03,225 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:13:03,225 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:13:03,226 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:13:03,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:13:03,227 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:13:03,228 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:13:03,228 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:13:03,229 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:13:03,229 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:13:03,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:13:03,230 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:13:03,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:13:03,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:13:03,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:13:03,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:13:03,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:13:03,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:13:03,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:13:03,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:13:03,235 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:13:03,236 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:13:03,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:13:03,237 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:13:03,237 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:13:03,237 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:13:03,238 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_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bc9cefebc94b707df6d8b29bfa22267d2ac4d88a42196368c7217e8b23b960f [2023-11-23 21:13:03,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:13:03,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:13:03,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:13:03,752 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:13:03,753 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:13:03,754 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/neural-networks/sin_0_safe.c-amalgamation.i [2023-11-23 21:13:07,168 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:13:07,561 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:13:07,564 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/sv-benchmarks/c/neural-networks/sin_0_safe.c-amalgamation.i [2023-11-23 21:13:07,617 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/data/6c1e3330a/13930e07af684a82ae687d0a1b896da7/FLAGe16c73ac6 [2023-11-23 21:13:07,632 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/data/6c1e3330a/13930e07af684a82ae687d0a1b896da7 [2023-11-23 21:13:07,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:13:07,637 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:13:07,639 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:13:07,639 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:13:07,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:13:07,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:13:07" (1/1) ... [2023-11-23 21:13:07,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aafd5c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:07, skipping insertion in model container [2023-11-23 21:13:07,648 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:13:07" (1/1) ... [2023-11-23 21:13:07,712 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:13:07,945 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:13:08,359 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-23 21:13:08,360 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isinf_sign [2023-11-23 21:13:08,369 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_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/sv-benchmarks/c/neural-networks/sin_0_safe.c-amalgamation.i[63028,63041] [2023-11-23 21:13:08,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:13:08,391 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:13:08,415 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:13:08,449 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-23 21:13:08,450 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isinf_sign [2023-11-23 21:13:08,451 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_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/sv-benchmarks/c/neural-networks/sin_0_safe.c-amalgamation.i[63028,63041] [2023-11-23 21:13:08,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:13:08,641 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:13:08,641 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:13:08,642 WARN L675 CHandler]: The function __builtin_isinf_sign is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:13:08,649 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:13:08,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:08 WrapperNode [2023-11-23 21:13:08,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:13:08,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:13:08,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:13:08,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:13:08,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:08" (1/1) ... [2023-11-23 21:13:08,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:08" (1/1) ... [2023-11-23 21:13:08,737 INFO L138 Inliner]: procedures = 561, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2023-11-23 21:13:08,737 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:13:08,738 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:13:08,738 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:13:08,738 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:13:08,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:08" (1/1) ... [2023-11-23 21:13:08,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:08" (1/1) ... [2023-11-23 21:13:08,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:08" (1/1) ... [2023-11-23 21:13:08,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:08" (1/1) ... [2023-11-23 21:13:08,771 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:08" (1/1) ... [2023-11-23 21:13:08,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:08" (1/1) ... [2023-11-23 21:13:08,776 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:08" (1/1) ... [2023-11-23 21:13:08,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:08" (1/1) ... [2023-11-23 21:13:08,781 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:13:08,782 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:13:08,782 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:13:08,783 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:13:08,783 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:08" (1/1) ... [2023-11-23 21:13:08,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:13:08,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:13:08,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:13:08,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:13:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isinf_sign [2023-11-23 21:13:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:13:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:13:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:13:08,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:13:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-23 21:13:09,040 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:13:09,042 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:13:09,193 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:13:09,251 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:13:09,253 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:13:09,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:13:09 BoogieIcfgContainer [2023-11-23 21:13:09,254 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:13:09,256 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:13:09,257 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:13:09,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:13:09,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:13:07" (1/3) ... [2023-11-23 21:13:09,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477a4eb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:13:09, skipping insertion in model container [2023-11-23 21:13:09,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:13:08" (2/3) ... [2023-11-23 21:13:09,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477a4eb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:13:09, skipping insertion in model container [2023-11-23 21:13:09,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:13:09" (3/3) ... [2023-11-23 21:13:09,267 INFO L112 eAbstractionObserver]: Analyzing ICFG sin_0_safe.c-amalgamation.i [2023-11-23 21:13:09,286 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:13:09,286 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:13:09,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:13:09,351 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;@2a3b4cba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:13:09,352 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:13:09,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:13:09,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:13:09,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:13:09,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:13:09,364 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:13:09,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:13:09,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1722709358, now seen corresponding path program 1 times [2023-11-23 21:13:09,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:13:09,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377930081] [2023-11-23 21:13:09,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:13:09,391 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 [2023-11-23 21:13:09,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:13:09,398 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:13:09,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:13:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:13:09,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:13:09,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:13:09,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:13:09,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:13:09,520 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:13:09,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377930081] [2023-11-23 21:13:09,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377930081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:13:09,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:13:09,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:13:09,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568286572] [2023-11-23 21:13:09,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:13:09,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:13:09,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:13:09,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:13:09,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:13:09,575 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-23 21:13:09,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:13:09,612 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2023-11-23 21:13:09,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:13:09,615 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-23 21:13:09,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:13:09,623 INFO L225 Difference]: With dead ends: 15 [2023-11-23 21:13:09,623 INFO L226 Difference]: Without dead ends: 7 [2023-11-23 21:13:09,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:13:09,630 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:13:09,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:13:09,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2023-11-23 21:13:09,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2023-11-23 21:13:09,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2023-11-23 21:13:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2023-11-23 21:13:09,662 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 6 [2023-11-23 21:13:09,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:13:09,663 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2023-11-23 21:13:09,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-23 21:13:09,664 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2023-11-23 21:13:09,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:13:09,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:13:09,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:13:09,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:13:09,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:13:09,866 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:13:09,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:13:09,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1722768940, now seen corresponding path program 1 times [2023-11-23 21:13:09,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:13:09,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667307088] [2023-11-23 21:13:09,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:13:09,868 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 [2023-11-23 21:13:09,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:13:09,878 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:13:09,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:13:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:13:09,992 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:13:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:13:10,042 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-23 21:13:10,042 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:13:10,045 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:13:10,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:13:10,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:13:10,254 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-23 21:13:10,258 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:13:10,270 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret90 could not be translated [2023-11-23 21:13:10,271 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret89 could not be translated [2023-11-23 21:13:10,272 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short91 could not be translated [2023-11-23 21:13:10,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:13:10 BoogieIcfgContainer [2023-11-23 21:13:10,283 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:13:10,284 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:13:10,287 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:13:10,288 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:13:10,288 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:13:09" (3/4) ... [2023-11-23 21:13:10,291 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:13:10,292 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:13:10,293 INFO L158 Benchmark]: Toolchain (without parser) took 2656.43ms. Allocated memory is still 90.2MB. Free memory was 68.7MB in the beginning and 38.6MB in the end (delta: 30.1MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2023-11-23 21:13:10,296 INFO L158 Benchmark]: CDTParser took 1.48ms. Allocated memory is still 65.0MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:13:10,300 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1011.56ms. Allocated memory is still 90.2MB. Free memory was 68.5MB in the beginning and 53.3MB in the end (delta: 15.2MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2023-11-23 21:13:10,300 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.22ms. Allocated memory is still 90.2MB. Free memory was 53.3MB in the beginning and 50.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:13:10,301 INFO L158 Benchmark]: Boogie Preprocessor took 43.35ms. Allocated memory is still 90.2MB. Free memory was 50.7MB in the beginning and 49.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:13:10,302 INFO L158 Benchmark]: RCFGBuilder took 471.89ms. Allocated memory is still 90.2MB. Free memory was 49.1MB in the beginning and 62.3MB in the end (delta: -13.3MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2023-11-23 21:13:10,302 INFO L158 Benchmark]: TraceAbstraction took 1027.49ms. Allocated memory is still 90.2MB. Free memory was 61.7MB in the beginning and 38.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-23 21:13:10,303 INFO L158 Benchmark]: Witness Printer took 8.12ms. Allocated memory is still 90.2MB. Free memory is still 38.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:13:10,311 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.48ms. Allocated memory is still 65.0MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1011.56ms. Allocated memory is still 90.2MB. Free memory was 68.5MB in the beginning and 53.3MB in the end (delta: 15.2MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.22ms. Allocated memory is still 90.2MB. Free memory was 53.3MB in the beginning and 50.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.35ms. Allocated memory is still 90.2MB. Free memory was 50.7MB in the beginning and 49.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 471.89ms. Allocated memory is still 90.2MB. Free memory was 49.1MB in the beginning and 62.3MB in the end (delta: -13.3MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1027.49ms. Allocated memory is still 90.2MB. Free memory was 61.7MB in the beginning and 38.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 8.12ms. Allocated memory is still 90.2MB. Free memory is still 38.6MB. 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~ret90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short91 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: 850]: 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 sinf at line 849. Possible FailurePath: [L847] float x = __VERIFIER_nondet_float(); [L848] EXPR !__builtin_isnan (x) && !__builtin_isinf_sign (x) [L848] EXPR !__builtin_isnan (x) && !__builtin_isinf_sign (x) [L848] COND FALSE !(!(!__builtin_isnan (x) && !__builtin_isinf_sign (x))) [L849] float y = sinf(x); [L850] COND TRUE !(__builtin_isgreaterequal(y, -1.0f)) VAL [y=-2.0] [L850] reach_error() VAL [y=-2.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 7 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:13:10,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e77cba-3bde-4799-9f1a-78aadb80a2e0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample