./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/softsign_0_safe.c-amalgamation.i --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_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/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_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/softsign_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/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_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/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 5292317c462af228984df234b4aff702b39dc1ce606cc318abd7d9f9161151ab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:45:42,466 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:45:42,535 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-21 19:45:42,541 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:45:42,542 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:45:42,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:45:42,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:45:42,580 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:45:42,581 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:45:42,584 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:45:42,584 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:45:42,585 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:45:42,586 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:45:42,590 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:45:42,591 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:45:42,591 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:45:42,592 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:45:42,592 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:45:42,593 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:45:42,593 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:45:42,594 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:45:42,594 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:45:42,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:45:42,596 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:45:42,597 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:45:42,597 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:45:42,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:45:42,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:45:42,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:45:42,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:45:42,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:45:42,601 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:45:42,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:45:42,601 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:45:42,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:45:42,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:45:42,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:45:42,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:45:42,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:45:42,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:45:42,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:45:42,605 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:45:42,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:45:42,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:45:42,606 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:45:42,607 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:45:42,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:45:42,607 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_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5292317c462af228984df234b4aff702b39dc1ce606cc318abd7d9f9161151ab [2023-11-21 19:45:42,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:45:42,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:45:42,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:45:42,976 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:45:42,976 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:45:42,977 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/neural-networks/softsign_0_safe.c-amalgamation.i [2023-11-21 19:45:46,047 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:45:46,384 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:45:46,385 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/sv-benchmarks/c/neural-networks/softsign_0_safe.c-amalgamation.i [2023-11-21 19:45:46,417 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/data/d39287899/37455bd52bf54e09826b67342448617b/FLAG732b7ff65 [2023-11-21 19:45:46,436 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/data/d39287899/37455bd52bf54e09826b67342448617b [2023-11-21 19:45:46,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:45:46,446 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:45:46,451 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:45:46,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:45:46,457 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:45:46,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:45:46" (1/1) ... [2023-11-21 19:45:46,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d286b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:45:46, skipping insertion in model container [2023-11-21 19:45:46,460 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:45:46" (1/1) ... [2023-11-21 19:45:46,533 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:45:46,823 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:45:47,312 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:2213) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:245) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1486) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:269) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:284) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2490) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:284) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:564) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2096) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:195) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:383) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1512) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:157) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3412) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2432) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:133) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:147) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-21 19:45:47,319 INFO L158 Benchmark]: Toolchain (without parser) took 871.66ms. Allocated memory is still 172.0MB. Free memory was 109.8MB in the beginning and 139.7MB in the end (delta: -30.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 19:45:47,320 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 123.7MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:45:47,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 865.70ms. Allocated memory is still 172.0MB. Free memory was 109.6MB in the beginning and 139.7MB in the end (delta: -30.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 19:45:47,322 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 123.7MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 865.70ms. Allocated memory is still 172.0MB. Free memory was 109.6MB in the beginning and 139.7MB in the end (delta: -30.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:610) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/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_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/softsign_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/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_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/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 5292317c462af228984df234b4aff702b39dc1ce606cc318abd7d9f9161151ab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:45:49,731 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:45:49,850 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-21 19:45:49,856 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:45:49,857 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:45:49,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:45:49,895 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:45:49,896 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:45:49,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:45:49,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:45:49,903 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:45:49,904 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:45:49,904 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:45:49,906 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:45:49,906 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:45:49,906 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:45:49,908 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:45:49,908 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:45:49,908 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:45:49,909 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:45:49,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:45:49,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:45:49,911 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:45:49,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:45:49,912 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 19:45:49,912 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 19:45:49,912 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 19:45:49,913 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:45:49,913 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:45:49,914 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:45:49,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:45:49,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 19:45:49,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:45:49,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:45:49,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:45:49,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:45:49,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:45:49,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:45:49,917 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 19:45:49,918 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 19:45:49,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:45:49,918 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:45:49,919 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:45:49,919 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:45:49,919 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_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5292317c462af228984df234b4aff702b39dc1ce606cc318abd7d9f9161151ab [2023-11-21 19:45:50,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:45:50,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:45:50,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:45:50,322 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:45:50,323 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:45:50,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/neural-networks/softsign_0_safe.c-amalgamation.i [2023-11-21 19:45:53,546 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:45:54,017 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:45:54,018 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/sv-benchmarks/c/neural-networks/softsign_0_safe.c-amalgamation.i [2023-11-21 19:45:54,045 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/data/0f28188c0/640f9ee5f4734579bc07eff323eb9187/FLAGe92a37239 [2023-11-21 19:45:54,061 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/data/0f28188c0/640f9ee5f4734579bc07eff323eb9187 [2023-11-21 19:45:54,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:45:54,066 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:45:54,068 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:45:54,068 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:45:54,074 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:45:54,075 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:45:54" (1/1) ... [2023-11-21 19:45:54,076 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c18a76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:45:54, skipping insertion in model container [2023-11-21 19:45:54,077 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:45:54" (1/1) ... [2023-11-21 19:45:54,138 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:45:54,418 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:45:55,364 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 19:45:55,365 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isinf_sign [2023-11-21 19:45:55,368 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_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/sv-benchmarks/c/neural-networks/softsign_0_safe.c-amalgamation.i[63091,63104] [2023-11-21 19:45:55,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:45:55,388 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:45:55,423 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:45:55,457 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 19:45:55,457 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isinf_sign [2023-11-21 19:45:55,459 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_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/sv-benchmarks/c/neural-networks/softsign_0_safe.c-amalgamation.i[63091,63104] [2023-11-21 19:45:55,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:45:55,729 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:45:55,729 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:45:55,729 WARN L675 CHandler]: The function __builtin_isinf_sign is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:45:55,737 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:45:55,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:45:55 WrapperNode [2023-11-21 19:45:55,738 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:45:55,739 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:45:55,740 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:45:55,740 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:45:55,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:45:55" (1/1) ... [2023-11-21 19:45:55,787 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:45:55" (1/1) ... [2023-11-21 19:45:55,829 INFO L138 Inliner]: procedures = 562, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2023-11-21 19:45:55,829 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:45:55,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:45:55,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:45:55,831 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:45:55,841 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:45:55" (1/1) ... [2023-11-21 19:45:55,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:45:55" (1/1) ... [2023-11-21 19:45:55,859 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:45:55" (1/1) ... [2023-11-21 19:45:55,859 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:45:55" (1/1) ... [2023-11-21 19:45:55,866 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:45:55" (1/1) ... [2023-11-21 19:45:55,867 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:45:55" (1/1) ... [2023-11-21 19:45:55,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:45:55" (1/1) ... [2023-11-21 19:45:55,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:45:55" (1/1) ... [2023-11-21 19:45:55,888 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:45:55,888 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:45:55,889 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:45:55,889 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:45:55,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:45:55" (1/1) ... [2023-11-21 19:45:55,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:45:55,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:45:55,928 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:45:55,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:45:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isinf_sign [2023-11-21 19:45:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 19:45:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:45:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:45:55,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:45:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-21 19:45:56,133 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:45:56,135 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:45:57,336 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:45:57,399 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:45:57,399 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 19:45:57,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:45:57 BoogieIcfgContainer [2023-11-21 19:45:57,401 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:45:57,403 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:45:57,403 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:45:57,406 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:45:57,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:45:54" (1/3) ... [2023-11-21 19:45:57,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5303e5c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:45:57, skipping insertion in model container [2023-11-21 19:45:57,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:45:55" (2/3) ... [2023-11-21 19:45:57,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5303e5c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:45:57, skipping insertion in model container [2023-11-21 19:45:57,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:45:57" (3/3) ... [2023-11-21 19:45:57,409 INFO L112 eAbstractionObserver]: Analyzing ICFG softsign_0_safe.c-amalgamation.i [2023-11-21 19:45:57,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:45:57,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:45:57,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:45:57,491 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;@7fffe826, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:45:57,491 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:45:57,495 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) [2023-11-21 19:45:57,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 19:45:57,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:45:57,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 19:45:57,502 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:45:57,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:45:57,507 INFO L85 PathProgramCache]: Analyzing trace with hash 66950, now seen corresponding path program 1 times [2023-11-21 19:45:57,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:45:57,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539928089] [2023-11-21 19:45:57,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:45:57,537 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 19:45:57,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:45:57,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/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 19:45:57,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/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 19:45:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:45:59,963 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 19:46:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:46:03,373 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-21 19:46:03,374 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 19:46:03,375 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 19:46:03,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/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)] Ended with exit code 0 [2023-11-21 19:46:03,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/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 19:46:03,582 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 19:46:03,586 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:46:03,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:46:03 BoogieIcfgContainer [2023-11-21 19:46:03,614 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:46:03,618 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:46:03,618 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:46:03,618 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:46:03,619 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:45:57" (3/4) ... [2023-11-21 19:46:03,620 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 19:46:03,654 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/witness.graphml [2023-11-21 19:46:03,654 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:46:03,656 INFO L158 Benchmark]: Toolchain (without parser) took 9589.48ms. Allocated memory is still 98.6MB. Free memory was 71.6MB in the beginning and 63.5MB in the end (delta: 8.1MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2023-11-21 19:46:03,656 INFO L158 Benchmark]: CDTParser took 1.19ms. Allocated memory is still 67.1MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:46:03,657 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1670.75ms. Allocated memory is still 98.6MB. Free memory was 71.3MB in the beginning and 64.4MB in the end (delta: 6.9MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2023-11-21 19:46:03,657 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.05ms. Allocated memory is still 98.6MB. Free memory was 64.4MB in the beginning and 61.8MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 19:46:03,658 INFO L158 Benchmark]: Boogie Preprocessor took 57.13ms. Allocated memory is still 98.6MB. Free memory was 61.8MB in the beginning and 60.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:46:03,659 INFO L158 Benchmark]: RCFGBuilder took 1512.38ms. Allocated memory is still 98.6MB. Free memory was 60.3MB in the beginning and 46.1MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 19:46:03,659 INFO L158 Benchmark]: TraceAbstraction took 6211.09ms. Allocated memory is still 98.6MB. Free memory was 45.6MB in the beginning and 64.7MB in the end (delta: -19.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:46:03,660 INFO L158 Benchmark]: Witness Printer took 37.04ms. Allocated memory is still 98.6MB. Free memory was 64.7MB in the beginning and 63.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:46:03,668 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19ms. Allocated memory is still 67.1MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1670.75ms. Allocated memory is still 98.6MB. Free memory was 71.3MB in the beginning and 64.4MB in the end (delta: 6.9MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.05ms. Allocated memory is still 98.6MB. Free memory was 64.4MB in the beginning and 61.8MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.13ms. Allocated memory is still 98.6MB. Free memory was 61.8MB in the beginning and 60.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1512.38ms. Allocated memory is still 98.6MB. Free memory was 60.3MB in the beginning and 46.1MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6211.09ms. Allocated memory is still 98.6MB. Free memory was 45.6MB in the beginning and 64.7MB in the end (delta: -19.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 37.04ms. Allocated memory is still 98.6MB. Free memory was 64.7MB in the beginning and 63.5MB in the end (delta: 1.2MB). 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 - CounterExampleResult [Line: 854]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L851] float x = __VERIFIER_nondet_float(); [L852] EXPR !__builtin_isnan (x) && !__builtin_isinf_sign (x) [L852] EXPR !__builtin_isnan (x) && !__builtin_isinf_sign (x) [L852] COND FALSE !(!(!__builtin_isnan (x) && !__builtin_isinf_sign (x))) [L853] CALL, EXPR softsign(x) [L847] return x / (fabsf(x) + 1.0f); [L853] RET, EXPR softsign(x) [L853] float y = softsign(x); [L854] COND TRUE !(__builtin_isgreaterequal(y, -1.0f)) VAL [x=NaN, y=NaN] [L854] reach_error() VAL [x=NaN, y=NaN] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, 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, 2.3s 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 proved your program to be incorrect! [2023-11-21 19:46:03,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda2177f-00ba-4503-b9f7-f37cb58ae4fb/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE