./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/elu_0_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/elu_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91 --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 74c4feb981688be903dea7fb1356134d10d4f0f3307cf0419438ea49017f594f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:07:55,353 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:07:55,422 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-25 00:07:55,435 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:07:55,435 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:07:55,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:07:55,483 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:07:55,484 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:07:55,485 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:07:55,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:07:55,491 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:07:55,493 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:07:55,493 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:07:55,495 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:07:55,496 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:07:55,496 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:07:55,497 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:07:55,497 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:07:55,497 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:07:55,498 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:07:55,498 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:07:55,499 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:07:55,500 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:07:55,501 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:07:55,502 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:07:55,502 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:07:55,502 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:07:55,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:07:55,503 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:07:55,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:07:55,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:07:55,506 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:07:55,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:07:55,506 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:07:55,507 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:07:55,507 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:07:55,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:07:55,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:07:55,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:07:55,508 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:07:55,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:07:55,509 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:07:55,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:07:55,509 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:07:55,510 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:07:55,510 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:07:55,510 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:07:55,510 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74c4feb981688be903dea7fb1356134d10d4f0f3307cf0419438ea49017f594f [2023-11-25 00:07:55,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:07:55,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:07:55,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:07:55,902 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:07:55,904 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:07:55,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/neural-networks/elu_0_safe.c-amalgamation.i [2023-11-25 00:07:59,079 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:07:59,521 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:07:59,522 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/sv-benchmarks/c/neural-networks/elu_0_safe.c-amalgamation.i [2023-11-25 00:07:59,546 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/data/e3916a774/726a2361f04c43c79fcf726eed510a56/FLAGbea352684 [2023-11-25 00:07:59,561 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/data/e3916a774/726a2361f04c43c79fcf726eed510a56 [2023-11-25 00:07:59,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:07:59,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:07:59,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:07:59,568 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:07:59,574 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:07:59,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:07:59" (1/1) ... [2023-11-25 00:07:59,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79a57af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:59, skipping insertion in model container [2023-11-25 00:07:59,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:07:59" (1/1) ... [2023-11-25 00:07:59,641 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:08:00,578 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:610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:2220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$76(StandardFunctionHandler.java:455) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:245) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1486) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:269) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2499) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2499) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2499) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1671) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:231) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:386) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1512) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:157) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3421) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2441) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:133) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:147) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-25 00:08:00,583 INFO L158 Benchmark]: Toolchain (without parser) took 1016.44ms. Allocated memory is still 134.2MB. Free memory was 98.4MB in the beginning and 83.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-25 00:08:00,584 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 134.2MB. Free memory was 104.9MB in the beginning and 104.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:08:00,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1013.87ms. Allocated memory is still 134.2MB. Free memory was 98.0MB in the beginning and 83.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-25 00:08:00,587 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 134.2MB. Free memory was 104.9MB in the beginning and 104.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1013.87ms. Allocated memory is still 134.2MB. Free memory was 98.0MB in the beginning and 83.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. 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:610) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/elu_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91 --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 74c4feb981688be903dea7fb1356134d10d4f0f3307cf0419438ea49017f594f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:08:03,145 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:08:03,292 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-25 00:08:03,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:08:03,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:08:03,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:08:03,344 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:08:03,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:08:03,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:08:03,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:08:03,351 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:08:03,352 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:08:03,352 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:08:03,354 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:08:03,354 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:08:03,355 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:08:03,356 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:08:03,356 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:08:03,357 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:08:03,358 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:08:03,359 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:08:03,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:08:03,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:08:03,360 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:08:03,360 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:08:03,361 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-25 00:08:03,361 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-25 00:08:03,361 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:08:03,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:08:03,362 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:08:03,364 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:08:03,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-25 00:08:03,364 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:08:03,365 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:08:03,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:08:03,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:08:03,366 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:08:03,366 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:08:03,366 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-25 00:08:03,367 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-25 00:08:03,367 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:08:03,368 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:08:03,368 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:08:03,368 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:08:03,369 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74c4feb981688be903dea7fb1356134d10d4f0f3307cf0419438ea49017f594f [2023-11-25 00:08:03,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:08:03,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:08:03,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:08:03,851 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:08:03,851 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:08:03,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/neural-networks/elu_0_safe.c-amalgamation.i [2023-11-25 00:08:06,919 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:08:07,354 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:08:07,354 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/sv-benchmarks/c/neural-networks/elu_0_safe.c-amalgamation.i [2023-11-25 00:08:07,387 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/data/23dd92141/c9799cbd70e74f61bf3d99863823e588/FLAGd6af829a7 [2023-11-25 00:08:07,409 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/data/23dd92141/c9799cbd70e74f61bf3d99863823e588 [2023-11-25 00:08:07,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:08:07,417 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:08:07,421 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:08:07,421 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:08:07,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:08:07,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:08:07" (1/1) ... [2023-11-25 00:08:07,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fce4fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:07, skipping insertion in model container [2023-11-25 00:08:07,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:08:07" (1/1) ... [2023-11-25 00:08:07,509 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:08:08,660 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/sv-benchmarks/c/neural-networks/elu_0_safe.c-amalgamation.i[63074,63087] [2023-11-25 00:08:08,666 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:08:08,684 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:08:08,763 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/sv-benchmarks/c/neural-networks/elu_0_safe.c-amalgamation.i[63074,63087] [2023-11-25 00:08:08,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:08:09,007 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:08:09,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:09 WrapperNode [2023-11-25 00:08:09,009 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:08:09,010 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:08:09,010 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:08:09,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:08:09,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:09" (1/1) ... [2023-11-25 00:08:09,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:09" (1/1) ... [2023-11-25 00:08:09,112 INFO L138 Inliner]: procedures = 559, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2023-11-25 00:08:09,112 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:08:09,113 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:08:09,113 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:08:09,113 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:08:09,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:09" (1/1) ... [2023-11-25 00:08:09,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:09" (1/1) ... [2023-11-25 00:08:09,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:09" (1/1) ... [2023-11-25 00:08:09,138 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:09" (1/1) ... [2023-11-25 00:08:09,144 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:09" (1/1) ... [2023-11-25 00:08:09,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:09" (1/1) ... [2023-11-25 00:08:09,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:09" (1/1) ... [2023-11-25 00:08:09,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:09" (1/1) ... [2023-11-25 00:08:09,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:08:09,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:08:09,176 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:08:09,177 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:08:09,177 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:09" (1/1) ... [2023-11-25 00:08:09,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:08:09,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:08:09,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:08:09,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:08:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-25 00:08:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:08:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:08:09,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:08:09,384 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:08:09,387 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:08:09,595 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:08:09,624 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:08:09,624 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:08:09,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:08:09 BoogieIcfgContainer [2023-11-25 00:08:09,625 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:08:09,627 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:08:09,627 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:08:09,631 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:08:09,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:08:07" (1/3) ... [2023-11-25 00:08:09,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b8b69b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:08:09, skipping insertion in model container [2023-11-25 00:08:09,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:09" (2/3) ... [2023-11-25 00:08:09,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b8b69b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:08:09, skipping insertion in model container [2023-11-25 00:08:09,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:08:09" (3/3) ... [2023-11-25 00:08:09,635 INFO L112 eAbstractionObserver]: Analyzing ICFG elu_0_safe.c-amalgamation.i [2023-11-25 00:08:09,655 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:08:09,655 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:08:09,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:08:09,709 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@41b19d0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:08:09,710 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:08:09,714 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:08:09,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-25 00:08:09,721 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:08:09,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:08:09,722 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:08:09,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:08:09,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1545019386, now seen corresponding path program 1 times [2023-11-25 00:08:09,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:08:09,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886010388] [2023-11-25 00:08:09,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:08:09,747 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:08:09,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:08:09,752 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:08:09,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-25 00:08:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:08:09,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-25 00:08:09,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:08:09,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:08:09,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:08:09,868 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:08:09,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886010388] [2023-11-25 00:08:09,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886010388] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:08:09,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:08:09,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:08:09,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592418973] [2023-11-25 00:08:09,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:08:09,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-25 00:08:09,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:08:09,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-25 00:08:09,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:08:09,949 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:08:09,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:08:09,985 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2023-11-25 00:08:09,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-25 00:08:09,988 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-25 00:08:09,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:08:09,996 INFO L225 Difference]: With dead ends: 18 [2023-11-25 00:08:09,997 INFO L226 Difference]: Without dead ends: 8 [2023-11-25 00:08:10,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:08:10,005 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:08:10,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:08:10,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-11-25 00:08:10,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-25 00:08:10,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:08:10,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-25 00:08:10,040 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7 [2023-11-25 00:08:10,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:08:10,040 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-25 00:08:10,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:08:10,041 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-25 00:08:10,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-25 00:08:10,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:08:10,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:08:10,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:08:10,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:08:10,246 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:08:10,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:08:10,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1487761084, now seen corresponding path program 1 times [2023-11-25 00:08:10,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:08:10,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367230470] [2023-11-25 00:08:10,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:08:10,248 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:08:10,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:08:10,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:08:10,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-25 00:08:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:08:10,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:08:10,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:08:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:08:10,421 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:08:10,421 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:08:10,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367230470] [2023-11-25 00:08:10,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [367230470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:08:10,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:08:10,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:08:10,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488602392] [2023-11-25 00:08:10,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:08:10,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:08:10,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:08:10,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:08:10,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:08:10,435 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:08:10,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:08:10,475 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2023-11-25 00:08:10,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:08:10,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-25 00:08:10,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:08:10,477 INFO L225 Difference]: With dead ends: 12 [2023-11-25 00:08:10,477 INFO L226 Difference]: Without dead ends: 8 [2023-11-25 00:08:10,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:08:10,479 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:08:10,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 14 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:08:10,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-11-25 00:08:10,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-25 00:08:10,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:08:10,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2023-11-25 00:08:10,484 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2023-11-25 00:08:10,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:08:10,484 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2023-11-25 00:08:10,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:08:10,485 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2023-11-25 00:08:10,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-25 00:08:10,485 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:08:10,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:08:10,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-25 00:08:10,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:08:10,689 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:08:10,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:08:10,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1487701502, now seen corresponding path program 1 times [2023-11-25 00:08:10,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:08:10,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456568667] [2023-11-25 00:08:10,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:08:10,691 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:08:10,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:08:10,695 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:08:10,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:08:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:08:10,768 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:08:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:08:10,809 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-25 00:08:10,810 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:08:10,811 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-25 00:08:10,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:08:11,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:08:11,018 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-25 00:08:11,022 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:08:11,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:08:11 BoogieIcfgContainer [2023-11-25 00:08:11,046 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:08:11,048 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:08:11,049 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:08:11,050 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:08:11,051 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:08:09" (3/4) ... [2023-11-25 00:08:11,059 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-25 00:08:11,060 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:08:11,061 INFO L158 Benchmark]: Toolchain (without parser) took 3644.11ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 46.6MB in the beginning and 45.9MB in the end (delta: 762.9kB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2023-11-25 00:08:11,063 INFO L158 Benchmark]: CDTParser took 1.29ms. Allocated memory is still 73.4MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:08:11,064 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1588.46ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 46.5MB in the beginning and 41.3MB in the end (delta: 5.2MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2023-11-25 00:08:11,065 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.39ms. Allocated memory is still 90.2MB. Free memory was 41.3MB in the beginning and 63.8MB in the end (delta: -22.5MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2023-11-25 00:08:11,065 INFO L158 Benchmark]: Boogie Preprocessor took 55.42ms. Allocated memory is still 90.2MB. Free memory was 63.8MB in the beginning and 62.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:08:11,066 INFO L158 Benchmark]: RCFGBuilder took 455.89ms. Allocated memory is still 90.2MB. Free memory was 62.1MB in the beginning and 51.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-25 00:08:11,066 INFO L158 Benchmark]: TraceAbstraction took 1420.37ms. Allocated memory is still 90.2MB. Free memory was 50.5MB in the beginning and 46.4MB in the end (delta: 4.1MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2023-11-25 00:08:11,067 INFO L158 Benchmark]: Witness Printer took 12.40ms. Allocated memory is still 90.2MB. Free memory is still 45.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:08:11,069 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.29ms. Allocated memory is still 73.4MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1588.46ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 46.5MB in the beginning and 41.3MB in the end (delta: 5.2MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.39ms. Allocated memory is still 90.2MB. Free memory was 41.3MB in the beginning and 63.8MB in the end (delta: -22.5MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.42ms. Allocated memory is still 90.2MB. Free memory was 63.8MB in the beginning and 62.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 455.89ms. Allocated memory is still 90.2MB. Free memory was 62.1MB in the beginning and 51.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1420.37ms. Allocated memory is still 90.2MB. Free memory was 50.5MB in the beginning and 46.4MB in the end (delta: 4.1MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * Witness Printer took 12.40ms. Allocated memory is still 90.2MB. Free memory is still 45.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 857]: 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 x = __VERIFIER_nondet_float(); [L855] COND FALSE !(!(!__builtin_isnan (x))) VAL [x=-2.0] [L856] CALL, EXPR elu(x) [L847] COND FALSE !(x >= 0.0f) [L850] return expm1f(x); [L856] RET, EXPR elu(x) [L856] float y = elu(x); [L857] COND TRUE !(__builtin_isgreaterequal(y, -1.0f)) VAL [x=-2.0, y=-2.0] [L857] reach_error() VAL [x=-2.0, y=-2.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 4 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-25 00:08:11,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_813b32d4-2f93-435c-8f23-e24ec8e19fe6/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample