./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/elu_2_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_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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_22a68925-f375-4fc9-956c-60bbe8940d86/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 7ac858ebbd8bca202c7c51b1584dbd1a80ae03321948e4e4062b9804fe2c638e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:33:53,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:33:53,312 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:33:53,318 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:33:53,318 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:33:53,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:33:53,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:33:53,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:33:53,357 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:33:53,357 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:33:53,357 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:33:53,358 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:33:53,358 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:33:53,358 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:33:53,358 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:33:53,359 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:33:53,360 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:33:53,360 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:33:53,360 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:33:53,361 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:33:53,361 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:33:53,361 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:33:53,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:33:53,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:33:53,362 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:33:53,362 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:33:53,362 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:33:53,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:33:53,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:33:53,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:33:53,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:33:53,362 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:33:53,362 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:33:53,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:33:53,362 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:33:53,362 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:33:53,362 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:33:53,363 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:33:53,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:33:53,363 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:33:53,364 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:33:53,364 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:33:53,364 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:33:53,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:33:53,365 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:33:53,365 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:33:53,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:33:53,365 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_22a68925-f375-4fc9-956c-60bbe8940d86/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 -> 7ac858ebbd8bca202c7c51b1584dbd1a80ae03321948e4e4062b9804fe2c638e [2024-11-13 23:33:53,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:33:53,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:33:53,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:33:53,696 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:33:53,696 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:33:53,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-13 23:33:55,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:33:55,965 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:33:55,969 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i [2024-11-13 23:33:56,003 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/data/80beac35b/d5effad1340c472c9866e7b794df1990/FLAG9bb98ac7f [2024-11-13 23:33:56,029 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/data/80beac35b/d5effad1340c472c9866e7b794df1990 [2024-11-13 23:33:56,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:33:56,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:33:56,037 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:33:56,037 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:33:56,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:33:56,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:33:56" (1/1) ... [2024-11-13 23:33:56,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29d1cc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:56, skipping insertion in model container [2024-11-13 23:33:56,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:33:56" (1/1) ... [2024-11-13 23:33:56,114 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:33:56,848 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: isnan 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.lambda$150(StandardFunctionHandler.java:621) 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: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: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: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:1761) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:233) 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) [2024-11-13 23:33:56,863 INFO L158 Benchmark]: Toolchain (without parser) took 825.57ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 75.3MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:33:56,864 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:33:56,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 822.24ms. Allocated memory is still 117.4MB. Free memory was 89.9MB in the beginning and 75.3MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:33:56,865 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 822.24ms. Allocated memory is still 117.4MB. Free memory was 89.9MB in the beginning and 75.3MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. 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: isnan de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isnan: 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_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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_22a68925-f375-4fc9-956c-60bbe8940d86/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 7ac858ebbd8bca202c7c51b1584dbd1a80ae03321948e4e4062b9804fe2c638e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:33:59,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:33:59,500 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-13 23:33:59,506 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:33:59,509 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:33:59,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:33:59,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:33:59,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:33:59,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:33:59,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:33:59,580 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:33:59,580 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:33:59,580 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:33:59,580 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:33:59,580 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:33:59,580 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:33:59,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:33:59,581 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:33:59,581 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:33:59,581 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:33:59,581 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:33:59,581 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:33:59,581 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:33:59,581 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:33:59,581 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:33:59,581 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:33:59,581 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:33:59,581 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:33:59,582 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:33:59,582 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:33:59,582 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:33:59,582 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:33:59,582 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 23:33:59,582 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:33:59,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:33:59,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:33:59,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:33:59,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:33:59,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:33:59,583 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:33:59,583 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:33:59,588 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:33:59,589 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:33:59,589 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_22a68925-f375-4fc9-956c-60bbe8940d86/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 -> 7ac858ebbd8bca202c7c51b1584dbd1a80ae03321948e4e4062b9804fe2c638e [2024-11-13 23:33:59,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:33:59,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:33:59,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:33:59,942 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:33:59,944 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:33:59,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-13 23:34:02,020 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:34:02,453 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:34:02,454 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i [2024-11-13 23:34:02,483 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/data/e115b4ab8/15d393bd51a44b258b1eb0a7bfe082a5/FLAG6d3638bb1 [2024-11-13 23:34:02,623 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/data/e115b4ab8/15d393bd51a44b258b1eb0a7bfe082a5 [2024-11-13 23:34:02,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:34:02,627 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:34:02,630 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:34:02,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:34:02,634 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:34:02,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:34:02" (1/1) ... [2024-11-13 23:34:02,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@721373a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:34:02, skipping insertion in model container [2024-11-13 23:34:02,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:34:02" (1/1) ... [2024-11-13 23:34:02,695 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:34:03,307 WARN L1684 CHandler]: Possible shadowing of function y1 [2024-11-13 23:34:03,310 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_22a68925-f375-4fc9-956c-60bbe8940d86/sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i[63118,63131] [2024-11-13 23:34:03,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:34:03,324 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:34:03,414 WARN L1684 CHandler]: Possible shadowing of function y1 [2024-11-13 23:34:03,417 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_22a68925-f375-4fc9-956c-60bbe8940d86/sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i[63118,63131] [2024-11-13 23:34:03,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:34:03,635 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:34:03,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:34:03 WrapperNode [2024-11-13 23:34:03,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:34:03,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:34:03,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:34:03,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:34:03,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:34:03" (1/1) ... [2024-11-13 23:34:03,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:34:03" (1/1) ... [2024-11-13 23:34:03,716 INFO L138 Inliner]: procedures = 559, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2024-11-13 23:34:03,718 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:34:03,719 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:34:03,719 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:34:03,719 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:34:03,726 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:34:03" (1/1) ... [2024-11-13 23:34:03,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:34:03" (1/1) ... [2024-11-13 23:34:03,729 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:34:03" (1/1) ... [2024-11-13 23:34:03,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:34:03" (1/1) ... [2024-11-13 23:34:03,735 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:34:03" (1/1) ... [2024-11-13 23:34:03,737 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:34:03" (1/1) ... [2024-11-13 23:34:03,738 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:34:03" (1/1) ... [2024-11-13 23:34:03,739 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:34:03" (1/1) ... [2024-11-13 23:34:03,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:34:03,743 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:34:03,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:34:03,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:34:03,744 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:34:03" (1/1) ... [2024-11-13 23:34:03,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:34:03,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:34:03,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:34:03,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:34:03,823 INFO L130 BoogieDeclarations]: Found specification of procedure elu [2024-11-13 23:34:03,824 INFO L138 BoogieDeclarations]: Found implementation of procedure elu [2024-11-13 23:34:03,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:34:03,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:34:03,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:34:03,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:34:03,948 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:34:03,950 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:34:04,109 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-13 23:34:04,109 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:34:04,118 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:34:04,118 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 23:34:04,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:34:04 BoogieIcfgContainer [2024-11-13 23:34:04,119 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:34:04,122 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:34:04,122 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:34:04,126 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:34:04,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:34:02" (1/3) ... [2024-11-13 23:34:04,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4d5e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:34:04, skipping insertion in model container [2024-11-13 23:34:04,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:34:03" (2/3) ... [2024-11-13 23:34:04,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4d5e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:34:04, skipping insertion in model container [2024-11-13 23:34:04,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:34:04" (3/3) ... [2024-11-13 23:34:04,129 INFO L112 eAbstractionObserver]: Analyzing ICFG elu_2_safe.c-amalgamation.i [2024-11-13 23:34:04,145 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:34:04,146 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG elu_2_safe.c-amalgamation.i that has 2 procedures, 18 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-13 23:34:04,195 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:34:04,209 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;@fa0e612, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:34:04,210 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:34:04,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 23:34:04,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 23:34:04,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:04,222 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:34:04,223 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:34:04,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:04,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1270606093, now seen corresponding path program 1 times [2024-11-13 23:34:04,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:34:04,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101400970] [2024-11-13 23:34:04,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:04,239 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 [2024-11-13 23:34:04,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:34:04,242 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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) [2024-11-13 23:34:04,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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 [2024-11-13 23:34:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:04,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 23:34:04,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:04,383 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:34:04,383 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:34:04,384 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:34:04,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101400970] [2024-11-13 23:34:04,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101400970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:34:04,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:34:04,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:34:04,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850970867] [2024-11-13 23:34:04,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:34:04,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:34:04,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:34:04,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:34:04,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:34:04,412 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 23:34:04,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:04,428 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2024-11-13 23:34:04,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:34:04,430 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-11-13 23:34:04,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:04,436 INFO L225 Difference]: With dead ends: 33 [2024-11-13 23:34:04,436 INFO L226 Difference]: Without dead ends: 14 [2024-11-13 23:34:04,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:34:04,442 INFO L432 NwaCegarLoop]: 19 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, 19 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 [2024-11-13 23:34:04,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:34:04,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-13 23:34:04,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-13 23:34:04,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 23:34:04,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2024-11-13 23:34:04,480 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 17 [2024-11-13 23:34:04,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:04,480 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-11-13 23:34:04,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 23:34:04,481 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-13 23:34:04,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 23:34:04,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:04,483 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:34:04,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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 [2024-11-13 23:34:04,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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 [2024-11-13 23:34:04,685 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:34:04,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:04,685 INFO L85 PathProgramCache]: Analyzing trace with hash -9257585, now seen corresponding path program 1 times [2024-11-13 23:34:04,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:34:04,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784656662] [2024-11-13 23:34:04,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:04,686 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 [2024-11-13 23:34:04,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:34:04,688 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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) [2024-11-13 23:34:04,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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 [2024-11-13 23:34:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:04,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 23:34:04,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:09,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:34:09,070 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:34:09,070 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:34:09,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784656662] [2024-11-13 23:34:09,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784656662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:34:09,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:34:09,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 23:34:09,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815277951] [2024-11-13 23:34:09,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:34:09,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 23:34:09,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:34:09,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 23:34:09,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 23:34:09,073 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 7 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 23:34:28,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:28,198 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2024-11-13 23:34:28,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 23:34:28,204 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 7 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2024-11-13 23:34:28,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:28,206 INFO L225 Difference]: With dead ends: 24 [2024-11-13 23:34:28,206 INFO L226 Difference]: Without dead ends: 20 [2024-11-13 23:34:28,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-13 23:34:28,208 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 21 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:28,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 50 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-13 23:34:28,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-13 23:34:28,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2024-11-13 23:34:28,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 23:34:28,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2024-11-13 23:34:28,217 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 17 [2024-11-13 23:34:28,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:28,217 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2024-11-13 23:34:28,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 7 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 23:34:28,218 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-13 23:34:28,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 23:34:28,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:28,219 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:34:28,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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)] Ended with exit code 0 [2024-11-13 23:34:28,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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 [2024-11-13 23:34:28,420 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:34:28,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:28,420 INFO L85 PathProgramCache]: Analyzing trace with hash 19371566, now seen corresponding path program 1 times [2024-11-13 23:34:28,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:34:28,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506917770] [2024-11-13 23:34:28,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:28,421 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 [2024-11-13 23:34:28,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:34:28,425 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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) [2024-11-13 23:34:28,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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 [2024-11-13 23:34:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:28,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 23:34:28,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:30,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:34:30,517 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:34:31,838 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 23:34:31,838 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:34:31,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506917770] [2024-11-13 23:34:31,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506917770] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:34:31,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [151355109] [2024-11-13 23:34:31,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:31,839 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:34:31,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:34:31,843 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:34:31,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-13 23:34:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:32,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 23:34:32,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:38,982 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:34:38,982 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:34:39,379 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 23:34:39,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [151355109] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:34:39,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022901169] [2024-11-13 23:34:39,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:39,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:39,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:34:39,381 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:34:39,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 23:34:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:39,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 23:34:39,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:55,603 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:34:55,603 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:34:55,958 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 23:34:55,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022901169] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:34:55,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-13 23:34:55,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9, 8, 8, 8] total 17 [2024-11-13 23:34:55,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216543402] [2024-11-13 23:34:55,959 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-13 23:34:55,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 23:34:55,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:34:55,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 23:34:55,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=220, Unknown=1, NotChecked=0, Total=272 [2024-11-13 23:34:55,961 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 17 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 17 states have internal predecessors, (25), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 23:35:13,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:35:13,763 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2024-11-13 23:35:13,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 23:35:13,771 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 17 states have internal predecessors, (25), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 7 states have call successors, (7) Word has length 17 [2024-11-13 23:35:13,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:35:13,772 INFO L225 Difference]: With dead ends: 30 [2024-11-13 23:35:13,772 INFO L226 Difference]: Without dead ends: 20 [2024-11-13 23:35:13,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 35.1s TimeCoverageRelationStatistics Valid=110, Invalid=441, Unknown=1, NotChecked=0, Total=552 [2024-11-13 23:35:13,774 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 44 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:35:13,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 66 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-13 23:35:13,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-13 23:35:13,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 16. [2024-11-13 23:35:13,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 12 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 23:35:13,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2024-11-13 23:35:13,778 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 17 [2024-11-13 23:35:13,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:35:13,778 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-11-13 23:35:13,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 17 states have internal predecessors, (25), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 23:35:13,778 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2024-11-13 23:35:13,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 23:35:13,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:35:13,779 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:35:13,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-13 23:35:13,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 23:35:14,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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)] Forceful destruction successful, exit code 0 [2024-11-13 23:35:14,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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 [2024-11-13 23:35:14,380 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:35:14,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:35:14,380 INFO L85 PathProgramCache]: Analyzing trace with hash 119825134, now seen corresponding path program 2 times [2024-11-13 23:35:14,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:35:14,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947026374] [2024-11-13 23:35:14,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 23:35:14,381 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 [2024-11-13 23:35:14,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:35:14,384 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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) [2024-11-13 23:35:14,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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 (7)] Waiting until timeout for monitored process [2024-11-13 23:35:14,453 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 23:35:14,453 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-13 23:35:14,453 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:35:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:35:14,511 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-13 23:35:14,512 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 23:35:14,513 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 23:35:14,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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 (7)] Forceful destruction successful, exit code 0 [2024-11-13 23:35:14,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/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 [2024-11-13 23:35:14,721 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-11-13 23:35:14,744 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:35:14,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:35:14 BoogieIcfgContainer [2024-11-13 23:35:14,747 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:35:14,748 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:35:14,748 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:35:14,748 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:35:14,749 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:34:04" (3/4) ... [2024-11-13 23:35:14,752 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:35:14,752 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:35:14,753 INFO L158 Benchmark]: Toolchain (without parser) took 72126.35ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 89.9MB in the beginning and 155.1MB in the end (delta: -65.2MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. [2024-11-13 23:35:14,754 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 117.4MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:35:14,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1007.75ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 72.1MB in the end (delta: 17.6MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2024-11-13 23:35:14,754 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.27ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 69.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:35:14,755 INFO L158 Benchmark]: Boogie Preprocessor took 23.14ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 68.9MB in the end (delta: 989.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:35:14,755 INFO L158 Benchmark]: RCFGBuilder took 376.60ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 58.1MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:35:14,756 INFO L158 Benchmark]: TraceAbstraction took 70625.34ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 57.6MB in the beginning and 155.1MB in the end (delta: -97.5MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2024-11-13 23:35:14,756 INFO L158 Benchmark]: Witness Printer took 4.89ms. Allocated memory is still 260.0MB. Free memory was 155.1MB in the beginning and 155.1MB in the end (delta: 44.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:35:14,758 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 117.4MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1007.75ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 72.1MB in the end (delta: 17.6MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.27ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 69.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.14ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 68.9MB in the end (delta: 989.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 376.60ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 58.1MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 70625.34ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 57.6MB in the beginning and 155.1MB in the end (delta: -97.5MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. * Witness Printer took 4.89ms. Allocated memory is still 260.0MB. Free memory was 155.1MB in the beginning and 155.1MB in the end (delta: 44.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 859]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of expm1f at line 850. Possible FailurePath: [L854] float x1 = __VERIFIER_nondet_float(); [L855] float x2 = x1 + 1e-5f; VAL [x1=-0.00000000000000000010842021724855044, x2=0.000009999999747378752] [L856] COND FALSE !(!(!__builtin_isnan (x1))) VAL [x1=-0.00000000000000000010842021724855044, x2=0.000009999999747378752] [L857] CALL, EXPR elu(x1) VAL [\old(x)=-0.00000000000000000010842021724855044] [L847] COND FALSE !(x >= 0.0f) [L850] return expm1f(x); [L857] RET, EXPR elu(x1) VAL [x1=-0.00000000000000000010842021724855044, x2=0.000009999999747378752] [L857] float y1 = elu(x1); [L858] CALL, EXPR elu(x2) VAL [\old(x)=0.000009999999747378752] [L847] COND TRUE x >= 0.0f [L848] return x; VAL [\old(x)=0.000009999999747378752, \result=0.000009999999747378752] [L858] RET, EXPR elu(x2) VAL [x1=-0.00000000000000000010842021724855044, x2=0.000009999999747378752, y1=2.0] [L858] float y2 = elu(x2); [L859] COND TRUE !(__builtin_islessequal(y1, y2)) VAL [x1=-0.00000000000000000010842021724855044, x2=0.000009999999747378752] [L859] reach_error() VAL [x1=-0.00000000000000000010842021724855044, x2=0.000009999999747378752] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 70.5s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 37.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 9.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 9.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152 IncrementalHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 37 mSDtfsCounter, 152 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 52.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 31.1s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 128 ConstructedInterpolants, 7 QuantifiedInterpolants, 521 SizeOfPredicates, 13 NumberOfNonLiveVariables, 200 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 17/32 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 23:35:14,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22a68925-f375-4fc9-956c-60bbe8940d86/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample