./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/poly_128_thresh_5_unsafe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_128_thresh_5_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje --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 77bc6b7b346042613af3ffc4f473b7408f132ecc5a3db5fe70c10f4f1eca14c1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:13:50,343 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:13:50,437 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:13:50,443 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:13:50,446 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:13:50,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:13:50,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:13:50,493 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:13:50,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:13:50,494 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:13:50,494 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:13:50,495 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:13:50,495 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:13:50,495 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:13:50,496 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:13:50,496 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:13:50,497 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:13:50,499 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:13:50,500 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:13:50,500 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:13:50,500 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:13:50,504 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:13:50,505 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:13:50,505 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:13:50,505 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:13:50,506 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:13:50,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:13:50,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:13:50,518 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:13:50,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:13:50,518 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:13:50,519 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:13:50,519 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:13:50,519 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:13:50,520 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:13:50,520 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:13:50,520 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:13:50,521 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:13:50,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:13:50,522 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:13:50,522 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:13:50,523 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:13:50,523 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:13:50,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:13:50,524 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:13:50,524 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:13:50,525 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:13:50,525 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_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77bc6b7b346042613af3ffc4f473b7408f132ecc5a3db5fe70c10f4f1eca14c1 [2024-11-09 05:13:50,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:13:50,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:13:50,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:13:50,861 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:13:50,862 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:13:50,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/poly_128_thresh_5_unsafe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 05:13:52,975 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:13:53,428 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:13:53,429 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/sv-benchmarks/c/neural-networks/poly_128_thresh_5_unsafe.c-amalgamation.i [2024-11-09 05:13:53,472 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/data/054ffc972/0a1ee5a4176946abab0b92cf35edba3d/FLAGb2fb1323e [2024-11-09 05:13:53,497 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/data/054ffc972/0a1ee5a4176946abab0b92cf35edba3d [2024-11-09 05:13:53,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:13:53,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:13:53,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:13:53,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:13:53,512 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:13:53,513 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:13:53" (1/1) ... [2024-11-09 05:13:53,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6013964b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:53, skipping insertion in model container [2024-11-09 05:13:53,515 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:13:53" (1/1) ... [2024-11-09 05:13:53,609 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:13:55,040 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3125) 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:1625) 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:1507) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:253) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:3216) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:3061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2295) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:144) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1237) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:215) 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:1652) 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:3539) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2522) 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) [2024-11-09 05:13:55,051 INFO L158 Benchmark]: Toolchain (without parser) took 1547.38ms. Allocated memory is still 125.8MB. Free memory was 86.8MB in the beginning and 63.5MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 05:13:55,052 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:13:55,053 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1540.52ms. Allocated memory is still 125.8MB. Free memory was 86.6MB in the beginning and 63.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 05:13:55,057 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1540.52ms. Allocated memory is still 125.8MB. Free memory was 86.6MB in the beginning and 63.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:627) 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_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_128_thresh_5_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje --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 77bc6b7b346042613af3ffc4f473b7408f132ecc5a3db5fe70c10f4f1eca14c1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:13:57,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:13:57,686 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 05:13:57,694 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:13:57,696 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:13:57,725 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:13:57,728 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:13:57,729 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:13:57,729 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:13:57,730 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:13:57,732 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:13:57,733 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:13:57,734 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:13:57,734 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:13:57,734 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:13:57,735 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:13:57,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:13:57,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:13:57,739 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:13:57,740 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:13:57,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:13:57,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:13:57,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:13:57,741 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:13:57,742 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:13:57,742 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:13:57,742 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:13:57,743 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:13:57,743 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:13:57,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:13:57,744 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:13:57,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:13:57,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:13:57,749 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:13:57,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:13:57,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:13:57,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:13:57,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:13:57,750 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:13:57,750 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:13:57,751 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:13:57,752 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:13:57,753 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:13:57,753 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77bc6b7b346042613af3ffc4f473b7408f132ecc5a3db5fe70c10f4f1eca14c1 [2024-11-09 05:13:58,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:13:58,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:13:58,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:13:58,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:13:58,152 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:13:58,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/poly_128_thresh_5_unsafe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 05:14:00,210 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:14:00,691 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:14:00,691 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/sv-benchmarks/c/neural-networks/poly_128_thresh_5_unsafe.c-amalgamation.i [2024-11-09 05:14:00,729 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/data/6b1f948e1/e66b8a3d46dc413d8c6f9a3eff1b08a4/FLAGa78e08b8a [2024-11-09 05:14:00,809 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/data/6b1f948e1/e66b8a3d46dc413d8c6f9a3eff1b08a4 [2024-11-09 05:14:00,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:14:00,816 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:14:00,817 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:14:00,818 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:14:00,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:14:00,826 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:14:00" (1/1) ... [2024-11-09 05:14:00,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:00, skipping insertion in model container [2024-11-09 05:14:00,832 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:14:00" (1/1) ... [2024-11-09 05:14:00,903 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:14:02,174 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_c3aa578b-8932-4698-8a02-9e51eab6fc8b/sv-benchmarks/c/neural-networks/poly_128_thresh_5_unsafe.c-amalgamation.i[71457,71470] [2024-11-09 05:14:02,707 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:14:02,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:14:02,739 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:14:02,862 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_c3aa578b-8932-4698-8a02-9e51eab6fc8b/sv-benchmarks/c/neural-networks/poly_128_thresh_5_unsafe.c-amalgamation.i[71457,71470] [2024-11-09 05:14:03,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:14:03,353 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:14:03,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:03 WrapperNode [2024-11-09 05:14:03,354 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:14:03,355 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:14:03,355 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:14:03,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:14:03,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:03" (1/1) ... [2024-11-09 05:14:03,471 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:03" (1/1) ... [2024-11-09 05:14:03,624 INFO L138 Inliner]: procedures = 779, calls = 1242, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1793 [2024-11-09 05:14:03,625 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:14:03,626 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:14:03,626 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:14:03,626 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:14:03,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:03" (1/1) ... [2024-11-09 05:14:03,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:03" (1/1) ... [2024-11-09 05:14:03,675 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:03" (1/1) ... [2024-11-09 05:14:03,676 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:03" (1/1) ... [2024-11-09 05:14:03,743 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:03" (1/1) ... [2024-11-09 05:14:03,764 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:03" (1/1) ... [2024-11-09 05:14:03,778 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:03" (1/1) ... [2024-11-09 05:14:03,791 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:03" (1/1) ... [2024-11-09 05:14:03,815 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:14:03,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:14:03,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:14:03,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:14:03,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:03" (1/1) ... [2024-11-09 05:14:03,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:14:03,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:14:03,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:14:03,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:14:03,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-09 05:14:03,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2024-11-09 05:14:03,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:14:03,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:14:03,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:14:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 05:14:03,906 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 05:14:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:14:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:14:03,908 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_idx2sub [2024-11-09 05:14:03,908 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_idx2sub [2024-11-09 05:14:03,909 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-09 05:14:03,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-09 05:14:03,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:14:03,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:14:03,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-09 05:14:03,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-09 05:14:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 05:14:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_dense [2024-11-09 05:14:03,910 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_dense [2024-11-09 05:14:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-09 05:14:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 05:14:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 05:14:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_sub2idx [2024-11-09 05:14:03,910 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_sub2idx [2024-11-09 05:14:04,235 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:14:04,240 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:14:27,352 INFO L? ?]: Removed 289 outVars from TransFormulas that were not future-live. [2024-11-09 05:14:27,353 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:14:27,383 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:14:27,383 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 05:14:27,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:14:27 BoogieIcfgContainer [2024-11-09 05:14:27,385 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:14:27,387 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:14:27,389 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:14:27,393 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:14:27,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:14:00" (1/3) ... [2024-11-09 05:14:27,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558f278e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:14:27, skipping insertion in model container [2024-11-09 05:14:27,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:03" (2/3) ... [2024-11-09 05:14:27,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558f278e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:14:27, skipping insertion in model container [2024-11-09 05:14:27,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:14:27" (3/3) ... [2024-11-09 05:14:27,400 INFO L112 eAbstractionObserver]: Analyzing ICFG poly_128_thresh_5_unsafe.c-amalgamation.i [2024-11-09 05:14:27,426 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:14:27,427 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:14:27,553 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:14:27,564 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;@3d918d49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:14:27,564 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:14:27,573 INFO L276 IsEmpty]: Start isEmpty. Operand has 220 states, 203 states have (on average 1.5467980295566504) internal successors, (314), 204 states have internal predecessors, (314), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:14:27,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 05:14:27,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:14:27,600 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:14:27,601 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:14:27,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:14:27,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1093136654, now seen corresponding path program 1 times [2024-11-09 05:14:27,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:14:27,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196583256] [2024-11-09 05:14:27,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:14:27,651 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 [2024-11-09 05:14:27,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:14:27,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:14:27,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:15:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:04,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 5357 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 05:15:04,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:15:04,625 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:15:04,625 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:15:04,626 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:15:04,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196583256] [2024-11-09 05:15:04,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196583256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:15:04,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:15:04,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:15:04,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156748605] [2024-11-09 05:15:04,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:15:04,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:15:04,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:15:04,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:15:04,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:15:04,669 INFO L87 Difference]: Start difference. First operand has 220 states, 203 states have (on average 1.5467980295566504) internal successors, (314), 204 states have internal predecessors, (314), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:15:04,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:15:04,730 INFO L93 Difference]: Finished difference Result 437 states and 666 transitions. [2024-11-09 05:15:04,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:15:04,739 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 58 [2024-11-09 05:15:04,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:15:04,762 INFO L225 Difference]: With dead ends: 437 [2024-11-09 05:15:04,763 INFO L226 Difference]: Without dead ends: 216 [2024-11-09 05:15:04,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:15:04,782 INFO L432 NwaCegarLoop]: 328 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, 328 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 [2024-11-09 05:15:04,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:15:04,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-09 05:15:04,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-11-09 05:15:04,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 200 states have (on average 1.52) internal successors, (304), 200 states have internal predecessors, (304), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:15:04,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 324 transitions. [2024-11-09 05:15:04,867 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 324 transitions. Word has length 58 [2024-11-09 05:15:04,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:15:04,868 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 324 transitions. [2024-11-09 05:15:04,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:15:04,868 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 324 transitions. [2024-11-09 05:15:04,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 05:15:04,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:15:04,874 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:15:04,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:15:05,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:15:05,075 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:15:05,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:15:05,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1133811404, now seen corresponding path program 1 times [2024-11-09 05:15:05,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:15:05,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085967476] [2024-11-09 05:15:05,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:05,095 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 [2024-11-09 05:15:05,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:15:05,099 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:15:05,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:15:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:48,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 5358 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:15:48,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:15:49,133 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:15:49,133 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:15:49,134 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:15:49,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085967476] [2024-11-09 05:15:49,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085967476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:15:49,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:15:49,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:15:49,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074617491] [2024-11-09 05:15:49,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:15:49,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:15:49,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:15:49,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:15:49,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:15:49,140 INFO L87 Difference]: Start difference. First operand 216 states and 324 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:15:50,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:15:50,193 INFO L93 Difference]: Finished difference Result 433 states and 650 transitions. [2024-11-09 05:15:50,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:15:50,195 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 58 [2024-11-09 05:15:50,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:15:50,201 INFO L225 Difference]: With dead ends: 433 [2024-11-09 05:15:50,205 INFO L226 Difference]: Without dead ends: 222 [2024-11-09 05:15:50,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:15:50,209 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 289 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:15:50,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 1012 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 05:15:50,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-09 05:15:50,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2024-11-09 05:15:50,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (13), 12 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-09 05:15:50,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 331 transitions. [2024-11-09 05:15:50,242 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 331 transitions. Word has length 58 [2024-11-09 05:15:50,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:15:50,243 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 331 transitions. [2024-11-09 05:15:50,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:15:50,244 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 331 transitions. [2024-11-09 05:15:50,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 05:15:50,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:15:50,248 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:15:50,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-09 05:15:50,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:15:50,449 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:15:50,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:15:50,449 INFO L85 PathProgramCache]: Analyzing trace with hash -968654444, now seen corresponding path program 1 times [2024-11-09 05:15:50,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:15:50,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006309775] [2024-11-09 05:15:50,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:50,460 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 [2024-11-09 05:15:50,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:15:50,463 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:15:50,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:16:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:32,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 5360 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:16:32,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:33,023 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:33,023 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:16:33,024 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:16:33,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006309775] [2024-11-09 05:16:33,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006309775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:33,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:33,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:16:33,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987819231] [2024-11-09 05:16:33,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:33,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:16:33,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:16:33,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:16:33,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:16:33,028 INFO L87 Difference]: Start difference. First operand 222 states and 331 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:16:33,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:33,941 INFO L93 Difference]: Finished difference Result 445 states and 664 transitions. [2024-11-09 05:16:33,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:16:33,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 60 [2024-11-09 05:16:33,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:33,945 INFO L225 Difference]: With dead ends: 445 [2024-11-09 05:16:33,945 INFO L226 Difference]: Without dead ends: 228 [2024-11-09 05:16:33,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:16:33,947 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 464 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:33,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 1021 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:16:33,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-09 05:16:33,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2024-11-09 05:16:33,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (13), 12 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-09 05:16:33,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 331 transitions. [2024-11-09 05:16:33,982 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 331 transitions. Word has length 60 [2024-11-09 05:16:33,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:33,983 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 331 transitions. [2024-11-09 05:16:33,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:16:33,984 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 331 transitions. [2024-11-09 05:16:33,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 05:16:33,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:33,987 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:34,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:16:34,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:16:34,188 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:16:34,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:34,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1293844880, now seen corresponding path program 1 times [2024-11-09 05:16:34,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:16:34,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455210002] [2024-11-09 05:16:34,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:34,195 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 [2024-11-09 05:16:34,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:16:34,197 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:16:34,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 05:17:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:17:24,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 5364 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:17:24,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:25,286 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:17:25,286 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:17:25,287 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:17:25,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [455210002] [2024-11-09 05:17:25,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [455210002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:17:25,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:17:25,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:17:25,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010958359] [2024-11-09 05:17:25,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:17:25,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:17:25,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:17:25,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:17:25,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:17:25,294 INFO L87 Difference]: Start difference. First operand 222 states and 331 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:17:26,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:17:26,762 INFO L93 Difference]: Finished difference Result 445 states and 664 transitions. [2024-11-09 05:17:26,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:17:26,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 64 [2024-11-09 05:17:26,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:17:26,768 INFO L225 Difference]: With dead ends: 445 [2024-11-09 05:17:26,768 INFO L226 Difference]: Without dead ends: 228 [2024-11-09 05:17:26,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:17:26,772 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 462 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:17:26,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1021 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 05:17:26,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-09 05:17:26,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2024-11-09 05:17:26,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (13), 12 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-09 05:17:26,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 331 transitions. [2024-11-09 05:17:26,805 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 331 transitions. Word has length 64 [2024-11-09 05:17:26,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:17:26,806 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 331 transitions. [2024-11-09 05:17:26,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:17:26,807 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 331 transitions. [2024-11-09 05:17:26,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 05:17:26,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:26,810 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:17:27,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-09 05:17:27,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:17:27,012 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:17:27,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:27,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1223620660, now seen corresponding path program 1 times [2024-11-09 05:17:27,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:17:27,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913807777] [2024-11-09 05:17:27,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:27,021 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 [2024-11-09 05:17:27,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:17:27,026 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:17:27,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 (6)] Waiting until timeout for monitored process [2024-11-09 05:18:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:14,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 5366 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:18:14,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:18:15,522 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:15,523 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:18:15,524 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:18:15,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913807777] [2024-11-09 05:18:15,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913807777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:15,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:18:15,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:18:15,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002699067] [2024-11-09 05:18:15,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:15,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:18:15,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:18:15,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:18:15,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:18:15,534 INFO L87 Difference]: Start difference. First operand 222 states and 331 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:18:16,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:16,897 INFO L93 Difference]: Finished difference Result 445 states and 664 transitions. [2024-11-09 05:18:16,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:18:16,900 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 66 [2024-11-09 05:18:16,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:16,904 INFO L225 Difference]: With dead ends: 445 [2024-11-09 05:18:16,904 INFO L226 Difference]: Without dead ends: 228 [2024-11-09 05:18:16,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:18:16,913 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 285 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:16,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 1021 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 05:18:16,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-09 05:18:16,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2024-11-09 05:18:16,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (13), 12 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-09 05:18:16,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 331 transitions. [2024-11-09 05:18:16,958 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 331 transitions. Word has length 66 [2024-11-09 05:18:16,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:16,959 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 331 transitions. [2024-11-09 05:18:16,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:18:16,960 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 331 transitions. [2024-11-09 05:18:16,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 05:18:16,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:16,963 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:18:17,167 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 (6)] Forcibly destroying the process [2024-11-09 05:18:17,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 (6)] Forceful destruction successful, exit code 137 [2024-11-09 05:18:17,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:18:17,178 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:18:17,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:17,179 INFO L85 PathProgramCache]: Analyzing trace with hash 2055674952, now seen corresponding path program 1 times [2024-11-09 05:18:17,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:18:17,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306546515] [2024-11-09 05:18:17,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:17,187 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 [2024-11-09 05:18:17,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:18:17,189 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:18:17,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:19:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:07,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 5364 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:19:07,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:19:09,354 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:09,354 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:19:09,355 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:19:09,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306546515] [2024-11-09 05:19:09,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306546515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:09,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:09,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:19:09,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911650009] [2024-11-09 05:19:09,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:09,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:19:09,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:19:09,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:19:09,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:19:09,362 INFO L87 Difference]: Start difference. First operand 222 states and 331 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:19:10,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:10,606 INFO L93 Difference]: Finished difference Result 445 states and 664 transitions. [2024-11-09 05:19:10,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:19:10,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 68 [2024-11-09 05:19:10,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:10,612 INFO L225 Difference]: With dead ends: 445 [2024-11-09 05:19:10,613 INFO L226 Difference]: Without dead ends: 228 [2024-11-09 05:19:10,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:19:10,616 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 278 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:10,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 948 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 05:19:10,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-09 05:19:10,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2024-11-09 05:19:10,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (13), 12 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-09 05:19:10,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 331 transitions. [2024-11-09 05:19:10,651 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 331 transitions. Word has length 68 [2024-11-09 05:19:10,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:10,652 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 331 transitions. [2024-11-09 05:19:10,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:19:10,653 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 331 transitions. [2024-11-09 05:19:10,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 05:19:10,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:10,655 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:19:10,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:19:10,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:19:10,857 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:19:10,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:10,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1972389804, now seen corresponding path program 1 times [2024-11-09 05:19:10,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:19:10,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1639146972] [2024-11-09 05:19:10,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:10,864 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 [2024-11-09 05:19:10,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:19:10,866 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:19:10,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 (8)] Waiting until timeout for monitored process [2024-11-09 05:19:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:57,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 5370 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:19:57,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:19:58,584 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-09 05:19:58,584 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:19:58,584 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:19:58,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1639146972] [2024-11-09 05:19:58,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1639146972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:58,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:58,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:19:58,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543053015] [2024-11-09 05:19:58,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:58,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:19:58,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:19:58,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:19:58,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:19:58,588 INFO L87 Difference]: Start difference. First operand 222 states and 331 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:19:59,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:59,451 INFO L93 Difference]: Finished difference Result 227 states and 335 transitions. [2024-11-09 05:19:59,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:19:59,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2024-11-09 05:19:59,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:59,454 INFO L225 Difference]: With dead ends: 227 [2024-11-09 05:19:59,454 INFO L226 Difference]: Without dead ends: 222 [2024-11-09 05:19:59,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:19:59,456 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 460 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:59,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1024 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:19:59,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-09 05:19:59,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2024-11-09 05:19:59,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (12), 12 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-09 05:19:59,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 330 transitions. [2024-11-09 05:19:59,483 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 330 transitions. Word has length 70 [2024-11-09 05:19:59,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:59,483 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 330 transitions. [2024-11-09 05:19:59,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:19:59,484 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 330 transitions. [2024-11-09 05:19:59,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 05:19:59,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:59,486 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:19:59,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 (8)] Forceful destruction successful, exit code 0 [2024-11-09 05:19:59,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:19:59,688 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:19:59,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:59,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1678476411, now seen corresponding path program 1 times [2024-11-09 05:19:59,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:19:59,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003235651] [2024-11-09 05:19:59,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:59,694 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 [2024-11-09 05:19:59,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:19:59,697 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:19:59,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 (9)] Waiting until timeout for monitored process [2024-11-09 05:20:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:41,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 5364 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:20:41,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:20:43,227 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 05:20:43,227 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:20:43,228 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:20:43,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003235651] [2024-11-09 05:20:43,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003235651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:43,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:43,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:20:43,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792733707] [2024-11-09 05:20:43,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:43,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:20:43,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:20:43,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:20:43,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:20:43,230 INFO L87 Difference]: Start difference. First operand 222 states and 330 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:20:44,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:44,046 INFO L93 Difference]: Finished difference Result 233 states and 341 transitions. [2024-11-09 05:20:44,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:20:44,047 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2024-11-09 05:20:44,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:44,050 INFO L225 Difference]: With dead ends: 233 [2024-11-09 05:20:44,050 INFO L226 Difference]: Without dead ends: 218 [2024-11-09 05:20:44,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:20:44,051 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 456 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:44,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1018 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:20:44,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-09 05:20:44,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2024-11-09 05:20:44,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 200 states have (on average 1.505) internal successors, (301), 200 states have internal predecessors, (301), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (12), 12 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-09 05:20:44,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 323 transitions. [2024-11-09 05:20:44,077 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 323 transitions. Word has length 64 [2024-11-09 05:20:44,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:44,078 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 323 transitions. [2024-11-09 05:20:44,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:20:44,078 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 323 transitions. [2024-11-09 05:20:44,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 05:20:44,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:44,080 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:44,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 (9)] Ended with exit code 0 [2024-11-09 05:20:44,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:20:44,281 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:20:44,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:44,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1288467253, now seen corresponding path program 1 times [2024-11-09 05:20:44,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:20:44,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684518953] [2024-11-09 05:20:44,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:44,287 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 [2024-11-09 05:20:44,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:20:44,288 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:20:44,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 (10)] Waiting until timeout for monitored process [2024-11-09 05:21:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:26,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 5365 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:21:26,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:21:28,108 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:21:28,109 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:21:28,109 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:21:28,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684518953] [2024-11-09 05:21:28,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684518953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:28,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:28,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:21:28,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741522627] [2024-11-09 05:21:28,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:28,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:21:28,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:21:28,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:21:28,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:21:28,112 INFO L87 Difference]: Start difference. First operand 218 states and 323 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:21:29,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:29,007 INFO L93 Difference]: Finished difference Result 229 states and 334 transitions. [2024-11-09 05:21:29,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:21:29,009 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2024-11-09 05:21:29,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:29,011 INFO L225 Difference]: With dead ends: 229 [2024-11-09 05:21:29,012 INFO L226 Difference]: Without dead ends: 214 [2024-11-09 05:21:29,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:21:29,013 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 447 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:29,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 991 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:21:29,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-09 05:21:29,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2024-11-09 05:21:29,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 196 states have (on average 1.5) internal successors, (294), 196 states have internal predecessors, (294), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (12), 12 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-09 05:21:29,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 316 transitions. [2024-11-09 05:21:29,039 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 316 transitions. Word has length 65 [2024-11-09 05:21:29,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:29,040 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 316 transitions. [2024-11-09 05:21:29,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:21:29,041 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 316 transitions. [2024-11-09 05:21:29,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 05:21:29,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:29,043 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:29,247 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 (10)] Forcibly destroying the process [2024-11-09 05:21:29,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 (10)] Forceful destruction successful, exit code 137 [2024-11-09 05:21:29,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:21:29,257 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:21:29,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:29,258 INFO L85 PathProgramCache]: Analyzing trace with hash 2136782579, now seen corresponding path program 1 times [2024-11-09 05:21:29,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:21:29,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394881520] [2024-11-09 05:21:29,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:29,272 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 [2024-11-09 05:21:29,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:21:29,276 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:21:29,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 (11)] Waiting until timeout for monitored process [2024-11-09 05:22:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:22:13,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 5367 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:22:13,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:22:14,747 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:22:14,747 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:22:14,747 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:22:14,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394881520] [2024-11-09 05:22:14,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394881520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:22:14,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:22:14,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:22:14,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077576611] [2024-11-09 05:22:14,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:22:14,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:22:14,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:22:14,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:22:14,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:22:14,750 INFO L87 Difference]: Start difference. First operand 214 states and 316 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:22:15,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:22:15,582 INFO L93 Difference]: Finished difference Result 225 states and 327 transitions. [2024-11-09 05:22:15,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:22:15,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 67 [2024-11-09 05:22:15,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:22:15,586 INFO L225 Difference]: With dead ends: 225 [2024-11-09 05:22:15,586 INFO L226 Difference]: Without dead ends: 210 [2024-11-09 05:22:15,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:22:15,588 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 440 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:22:15,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 964 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:22:15,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-09 05:22:15,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-11-09 05:22:15,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 192 states have (on average 1.4947916666666667) internal successors, (287), 192 states have internal predecessors, (287), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (12), 12 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-09 05:22:15,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 309 transitions. [2024-11-09 05:22:15,611 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 309 transitions. Word has length 67 [2024-11-09 05:22:15,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:22:15,612 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 309 transitions. [2024-11-09 05:22:15,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:22:15,612 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 309 transitions. [2024-11-09 05:22:15,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 05:22:15,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:22:15,614 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:22:15,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 (11)] Ended with exit code 0 [2024-11-09 05:22:15,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:22:15,815 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:22:15,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:22:15,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1039505773, now seen corresponding path program 1 times [2024-11-09 05:22:15,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:22:15,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345884776] [2024-11-09 05:22:15,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:22:15,821 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 [2024-11-09 05:22:15,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:22:15,822 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:22:15,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 (12)] Waiting until timeout for monitored process [2024-11-09 05:22:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:22:54,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 5368 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:22:54,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:22:55,847 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:22:55,847 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:22:55,847 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:22:55,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345884776] [2024-11-09 05:22:55,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345884776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:22:55,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:22:55,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:22:55,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153610078] [2024-11-09 05:22:55,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:22:55,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:22:55,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:22:55,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:22:55,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:22:55,849 INFO L87 Difference]: Start difference. First operand 210 states and 309 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:22:56,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:22:56,492 INFO L93 Difference]: Finished difference Result 221 states and 320 transitions. [2024-11-09 05:22:56,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:22:56,493 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 68 [2024-11-09 05:22:56,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:22:56,495 INFO L225 Difference]: With dead ends: 221 [2024-11-09 05:22:56,495 INFO L226 Difference]: Without dead ends: 206 [2024-11-09 05:22:56,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:22:56,496 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 436 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:22:56,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 937 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:22:56,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-09 05:22:56,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2024-11-09 05:22:56,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 188 states have (on average 1.4893617021276595) internal successors, (280), 188 states have internal predecessors, (280), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (12), 12 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-09 05:22:56,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 302 transitions. [2024-11-09 05:22:56,515 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 302 transitions. Word has length 68 [2024-11-09 05:22:56,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:22:56,515 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 302 transitions. [2024-11-09 05:22:56,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:22:56,515 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 302 transitions. [2024-11-09 05:22:56,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 05:22:56,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:22:56,516 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:22:56,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 (12)] Forceful destruction successful, exit code 0 [2024-11-09 05:22:56,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:22:56,717 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:22:56,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:22:56,718 INFO L85 PathProgramCache]: Analyzing trace with hash 205267919, now seen corresponding path program 1 times [2024-11-09 05:22:56,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:22:56,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403703201] [2024-11-09 05:22:56,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:22:56,722 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 [2024-11-09 05:22:56,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:22:56,725 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:22:56,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3aa578b-8932-4698-8a02-9e51eab6fc8b/bin/utaipan-verify-YMUCfTKeje/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 (13)] Waiting until timeout for monitored process