./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/tanh_w16_r4_case_0_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_w16_r4_case_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E --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 9c072276934201aa7cacc72c512d1b30aeb65ccaeaf737c0f30095fdf596ee4d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:15:24,141 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:15:24,228 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:15:24,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:15:24,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:15:24,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:15:24,264 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:15:24,264 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:15:24,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:15:24,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:15:24,264 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:15:24,265 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:15:24,265 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:15:24,265 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:15:24,265 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:15:24,265 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:15:24,265 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:15:24,265 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:15:24,265 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:15:24,267 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:15:24,267 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:15:24,267 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:15:24,268 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:15:24,268 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:15:24,268 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:15:24,268 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:15:24,268 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:15:24,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:15:24,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:15:24,268 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:15:24,268 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:15:24,268 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:15:24,268 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:15:24,269 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:15:24,269 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:15:24,269 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:15:24,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:15:24,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:15:24,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:15:24,269 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:15:24,269 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:15:24,269 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:15:24,269 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:15:24,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:15:24,271 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:15:24,271 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:15:24,271 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:15:24,271 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E 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 -> 9c072276934201aa7cacc72c512d1b30aeb65ccaeaf737c0f30095fdf596ee4d [2024-11-14 04:15:24,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:15:24,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:15:24,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:15:24,625 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:15:24,625 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:15:24,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/neural-networks/tanh_w16_r4_case_0_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-14 04:15:26,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:15:27,026 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:15:27,031 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/sv-benchmarks/c/neural-networks/tanh_w16_r4_case_0_safe.c-amalgamation.i [2024-11-14 04:15:27,083 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/data/3c8aed050/f51cd7f6cd73420d90c4853f9326957a/FLAGbafdbc480 [2024-11-14 04:15:27,108 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/data/3c8aed050/f51cd7f6cd73420d90c4853f9326957a [2024-11-14 04:15:27,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:15:27,113 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:15:27,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:15:27,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:15:27,120 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:15:27,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:15:27" (1/1) ... [2024-11-14 04:15:27,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f78fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:27, skipping insertion in model container [2024-11-14 04:15:27,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:15:27" (1/1) ... [2024-11-14 04:15:27,201 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:15:28,640 WARN L250 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_48c4f120-bf13-4b59-87e7-fdf1d2856a22/sv-benchmarks/c/neural-networks/tanh_w16_r4_case_0_safe.c-amalgamation.i[72228,72241] [2024-11-14 04:15:29,148 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:629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3128) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:792) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2564) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:307) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:792) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:792) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1516) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1167) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleLoopBody(CHandler.java:3610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1563) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:227) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1167) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1638) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3515) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2508) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:642) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-14 04:15:29,160 INFO L158 Benchmark]: Toolchain (without parser) took 2045.98ms. Allocated memory is still 117.4MB. Free memory was 87.2MB in the beginning and 81.6MB in the end (delta: 5.6MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2024-11-14 04:15:29,160 INFO L158 Benchmark]: CDTParser took 1.09ms. Allocated memory is still 117.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:15:29,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2043.45ms. Allocated memory is still 117.4MB. Free memory was 87.2MB in the beginning and 81.6MB in the end (delta: 5.6MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2024-11-14 04:15:29,162 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.09ms. Allocated memory is still 117.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2043.45ms. Allocated memory is still 117.4MB. Free memory was 87.2MB in the beginning and 81.6MB in the end (delta: 5.6MB). Peak memory consumption was 61.1MB. 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:629) 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_w16_r4_case_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E --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 9c072276934201aa7cacc72c512d1b30aeb65ccaeaf737c0f30095fdf596ee4d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:15:31,878 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:15:32,013 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 04:15:32,023 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:15:32,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:15:32,060 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:15:32,062 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:15:32,062 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:15:32,063 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:15:32,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:15:32,063 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:15:32,063 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:15:32,063 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:15:32,063 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:15:32,064 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:15:32,064 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:15:32,064 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:15:32,064 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:15:32,064 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:15:32,064 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:15:32,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:15:32,065 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:15:32,065 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:15:32,065 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:15:32,065 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:15:32,065 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:15:32,065 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:15:32,065 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:15:32,068 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:15:32,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:15:32,069 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:15:32,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:15:32,069 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:15:32,069 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:15:32,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:15:32,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:15:32,070 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:15:32,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:15:32,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:15:32,071 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:15:32,071 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:15:32,071 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:15:32,071 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:15:32,072 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E 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 -> 9c072276934201aa7cacc72c512d1b30aeb65ccaeaf737c0f30095fdf596ee4d [2024-11-14 04:15:32,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:15:32,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:15:32,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:15:32,580 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:15:32,580 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:15:32,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/neural-networks/tanh_w16_r4_case_0_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-14 04:15:34,745 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:15:35,410 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:15:35,412 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/sv-benchmarks/c/neural-networks/tanh_w16_r4_case_0_safe.c-amalgamation.i [2024-11-14 04:15:35,464 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/data/1ef5a9c6a/b23edb308c684916a515c67a072c09ec/FLAG0019d83b5 [2024-11-14 04:15:35,494 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/data/1ef5a9c6a/b23edb308c684916a515c67a072c09ec [2024-11-14 04:15:35,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:15:35,499 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:15:35,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:15:35,503 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:15:35,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:15:35,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:15:35" (1/1) ... [2024-11-14 04:15:35,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62428cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:35, skipping insertion in model container [2024-11-14 04:15:35,515 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:15:35" (1/1) ... [2024-11-14 04:15:35,622 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:15:37,169 WARN L250 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_48c4f120-bf13-4b59-87e7-fdf1d2856a22/sv-benchmarks/c/neural-networks/tanh_w16_r4_case_0_safe.c-amalgamation.i[72228,72241] [2024-11-14 04:15:37,881 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 04:15:38,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:15:38,048 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:15:38,154 WARN L250 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_48c4f120-bf13-4b59-87e7-fdf1d2856a22/sv-benchmarks/c/neural-networks/tanh_w16_r4_case_0_safe.c-amalgamation.i[72228,72241] [2024-11-14 04:15:38,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:15:38,854 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:15:38,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:38 WrapperNode [2024-11-14 04:15:38,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:15:38,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:15:38,856 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:15:38,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:15:38,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:38" (1/1) ... [2024-11-14 04:15:38,970 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:38" (1/1) ... [2024-11-14 04:15:39,098 INFO L138 Inliner]: procedures = 780, calls = 2961, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 1144 [2024-11-14 04:15:39,101 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:15:39,102 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:15:39,102 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:15:39,103 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:15:39,113 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:38" (1/1) ... [2024-11-14 04:15:39,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:38" (1/1) ... [2024-11-14 04:15:39,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:38" (1/1) ... [2024-11-14 04:15:39,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:38" (1/1) ... [2024-11-14 04:15:39,192 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:38" (1/1) ... [2024-11-14 04:15:39,199 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:38" (1/1) ... [2024-11-14 04:15:39,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:38" (1/1) ... [2024-11-14 04:15:39,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:38" (1/1) ... [2024-11-14 04:15:39,225 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:15:39,226 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:15:39,226 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:15:39,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:15:39,227 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:38" (1/1) ... [2024-11-14 04:15:39,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:15:39,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:15:39,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:15:39,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:15:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-14 04:15:39,307 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNN [2024-11-14 04:15:39,307 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNN [2024-11-14 04:15:39,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2024-11-14 04:15:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:15:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:15:39,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:15:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 04:15:39,309 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 04:15:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 04:15:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 04:15:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_affine_matmul [2024-11-14 04:15:39,309 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_affine_matmul [2024-11-14 04:15:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-14 04:15:39,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-14 04:15:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:15:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:15:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-14 04:15:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-14 04:15:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNNcell [2024-11-14 04:15:39,310 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNNcell [2024-11-14 04:15:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 04:15:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-14 04:15:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 04:15:39,661 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:15:39,666 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:15:54,050 INFO L? ?]: Removed 133 outVars from TransFormulas that were not future-live. [2024-11-14 04:15:54,050 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:15:54,069 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:15:54,072 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-14 04:15:54,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:15:54 BoogieIcfgContainer [2024-11-14 04:15:54,073 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:15:54,076 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:15:54,078 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:15:54,083 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:15:54,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:15:35" (1/3) ... [2024-11-14 04:15:54,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13be44e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:15:54, skipping insertion in model container [2024-11-14 04:15:54,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:15:38" (2/3) ... [2024-11-14 04:15:54,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13be44e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:15:54, skipping insertion in model container [2024-11-14 04:15:54,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:15:54" (3/3) ... [2024-11-14 04:15:54,087 INFO L112 eAbstractionObserver]: Analyzing ICFG tanh_w16_r4_case_0_safe.c-amalgamation.i [2024-11-14 04:15:54,109 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:15:54,110 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG tanh_w16_r4_case_0_safe.c-amalgamation.i that has 6 procedures, 131 locations, 1 initial locations, 21 loop locations, and 1 error locations. [2024-11-14 04:15:54,186 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:15:54,204 INFO L333 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, 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;@608b0c87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:15:54,205 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:15:54,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 117 states have (on average 1.623931623931624) internal successors, (190), 118 states have internal predecessors, (190), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:15:54,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-14 04:15:54,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:15:54,217 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:15:54,218 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:15:54,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:15:54,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1349509590, now seen corresponding path program 1 times [2024-11-14 04:15:54,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:15:54,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807421811] [2024-11-14 04:15:54,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:15:54,250 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 [2024-11-14 04:15:54,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:15:54,255 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:15:54,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:16:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:16:36,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 5939 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 04:16:36,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:16:36,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:16:36,084 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:16:36,085 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:16:36,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807421811] [2024-11-14 04:16:36,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807421811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:16:36,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:16:36,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:16:36,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908940507] [2024-11-14 04:16:36,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:16:36,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:16:36,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:16:36,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:16:36,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:16:36,124 INFO L87 Difference]: Start difference. First operand has 131 states, 117 states have (on average 1.623931623931624) internal successors, (190), 118 states have internal predecessors, (190), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:16:36,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:16:36,168 INFO L93 Difference]: Finished difference Result 258 states and 408 transitions. [2024-11-14 04:16:36,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:16:36,170 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-14 04:16:36,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:16:36,177 INFO L225 Difference]: With dead ends: 258 [2024-11-14 04:16:36,177 INFO L226 Difference]: Without dead ends: 127 [2024-11-14 04:16:36,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:16:36,184 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:16:36,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:16:36,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-14 04:16:36,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-14 04:16:36,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 114 states have (on average 1.3859649122807018) internal successors, (158), 114 states have internal predecessors, (158), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:16:36,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 172 transitions. [2024-11-14 04:16:36,235 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 172 transitions. Word has length 35 [2024-11-14 04:16:36,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:16:36,236 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 172 transitions. [2024-11-14 04:16:36,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:16:36,237 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 172 transitions. [2024-11-14 04:16:36,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-14 04:16:36,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:16:36,239 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:16:36,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:16:36,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:16:36,440 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:16:36,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:16:36,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1794721839, now seen corresponding path program 1 times [2024-11-14 04:16:36,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:16:36,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037914269] [2024-11-14 04:16:36,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:16:36,445 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 [2024-11-14 04:16:36,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:16:36,447 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:16:36,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:17:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:17:16,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 5939 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 04:17:16,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:17:16,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:17:16,828 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:17:16,829 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:17:16,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037914269] [2024-11-14 04:17:16,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2037914269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:17:16,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:17:16,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:17:16,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603728675] [2024-11-14 04:17:16,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:17:16,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:17:16,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:17:16,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:17:16,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:17:16,833 INFO L87 Difference]: Start difference. First operand 127 states and 172 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:17:18,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:17:18,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:17:18,956 INFO L93 Difference]: Finished difference Result 245 states and 332 transitions. [2024-11-14 04:17:18,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:17:18,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-14 04:17:18,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:17:18,961 INFO L225 Difference]: With dead ends: 245 [2024-11-14 04:17:18,961 INFO L226 Difference]: Without dead ends: 127 [2024-11-14 04:17:18,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:17:18,963 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 0 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:17:18,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 339 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2024-11-14 04:17:18,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-14 04:17:18,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-14 04:17:18,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 114 states have (on average 1.3771929824561404) internal successors, (157), 114 states have internal predecessors, (157), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:17:18,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 171 transitions. [2024-11-14 04:17:18,977 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 171 transitions. Word has length 35 [2024-11-14 04:17:18,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:17:18,977 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 171 transitions. [2024-11-14 04:17:18,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:17:18,977 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 171 transitions. [2024-11-14 04:17:18,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-14 04:17:18,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:17:18,978 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:17:19,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:17:19,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:17:19,179 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:17:19,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:17:19,180 INFO L85 PathProgramCache]: Analyzing trace with hash 577017423, now seen corresponding path program 1 times [2024-11-14 04:17:19,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:17:19,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253069652] [2024-11-14 04:17:19,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:17:19,183 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 [2024-11-14 04:17:19,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:17:19,185 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:17:19,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 04:18:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:18:02,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 5941 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:18:02,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:18:03,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:18:03,097 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:18:03,098 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:18:03,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253069652] [2024-11-14 04:18:03,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253069652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:18:03,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:18:03,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:18:03,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682184780] [2024-11-14 04:18:03,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:18:03,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:18:03,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:18:03,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:18:03,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:18:03,100 INFO L87 Difference]: Start difference. First operand 127 states and 171 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:18:03,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:18:03,298 INFO L93 Difference]: Finished difference Result 137 states and 182 transitions. [2024-11-14 04:18:03,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:18:03,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-14 04:18:03,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:18:03,308 INFO L225 Difference]: With dead ends: 137 [2024-11-14 04:18:03,311 INFO L226 Difference]: Without dead ends: 119 [2024-11-14 04:18:03,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:18:03,313 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 13 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:18:03,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 656 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:18:03,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-14 04:18:03,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-14 04:18:03,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 107 states have (on average 1.3644859813084111) internal successors, (146), 107 states have internal predecessors, (146), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 04:18:03,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 158 transitions. [2024-11-14 04:18:03,336 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 158 transitions. Word has length 35 [2024-11-14 04:18:03,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:18:03,340 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 158 transitions. [2024-11-14 04:18:03,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:18:03,340 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 158 transitions. [2024-11-14 04:18:03,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-14 04:18:03,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:18:03,341 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:18:03,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-14 04:18:03,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:18:03,542 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:18:03,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:18:03,542 INFO L85 PathProgramCache]: Analyzing trace with hash 26434860, now seen corresponding path program 1 times [2024-11-14 04:18:03,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:18:03,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2108393179] [2024-11-14 04:18:03,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:18:03,547 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 [2024-11-14 04:18:03,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:18:03,549 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:18:03,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c4f120-bf13-4b59-87e7-fdf1d2856a22/bin/utaipan-verify-sOmjnqqW8E/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 (5)] Waiting until timeout for monitored process