./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/poly_256_thresh_2_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_256_thresh_2_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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_6abe580b-2d8a-42be-aa23-11eba503c923/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 cda1efa412e0663af96ef79b4e9a252864511b1651836b3196eb6d1863ef9910 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:53:35,560 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:53:35,640 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:53:35,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:53:35,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:53:35,683 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:53:35,686 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:53:35,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:53:35,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:53:35,689 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:53:35,689 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:53:35,689 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:53:35,690 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:53:35,690 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:53:35,690 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:53:35,694 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:53:35,694 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:53:35,694 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:53:35,695 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:53:35,695 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:53:35,695 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:53:35,696 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:53:35,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:53:35,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:53:35,698 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:53:35,699 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:53:35,699 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:53:35,699 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:53:35,700 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:53:35,700 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:53:35,700 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:53:35,700 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:53:35,700 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:53:35,701 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:53:35,701 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:53:35,701 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:53:35,702 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:53:35,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:53:35,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:53:35,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:53:35,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:53:35,704 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:53:35,704 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:53:35,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:53:35,705 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:53:35,705 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:53:35,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:53:35,706 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_6abe580b-2d8a-42be-aa23-11eba503c923/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cda1efa412e0663af96ef79b4e9a252864511b1651836b3196eb6d1863ef9910 [2024-11-09 05:53:35,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:53:36,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:53:36,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:53:36,015 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:53:36,016 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:53:36,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/poly_256_thresh_2_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 05:53:37,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:53:38,429 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:53:38,430 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/sv-benchmarks/c/neural-networks/poly_256_thresh_2_safe.c-amalgamation.i [2024-11-09 05:53:38,472 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/data/66033ea01/3faa6de5e7cf46a1b89ce4e45b11c2c1/FLAG98d24798c [2024-11-09 05:53:38,489 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/data/66033ea01/3faa6de5e7cf46a1b89ce4e45b11c2c1 [2024-11-09 05:53:38,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:53:38,495 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:53:38,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:53:38,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:53:38,504 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:53:38,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:53:38" (1/1) ... [2024-11-09 05:53:38,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44002c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:38, skipping insertion in model container [2024-11-09 05:53:38,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:53:38" (1/1) ... [2024-11-09 05:53:38,589 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:53:39,779 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 05:53:39,795 INFO L158 Benchmark]: Toolchain (without parser) took 1298.88ms. Allocated memory is still 140.5MB. Free memory was 101.8MB in the beginning and 78.6MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 05:53:39,796 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 100.7MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:53:39,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1295.25ms. Allocated memory is still 140.5MB. Free memory was 101.4MB in the beginning and 78.6MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 05:53:39,798 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 100.7MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1295.25ms. Allocated memory is still 140.5MB. Free memory was 101.4MB in the beginning and 78.6MB in the end (delta: 22.8MB). 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_256_thresh_2_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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_6abe580b-2d8a-42be-aa23-11eba503c923/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 cda1efa412e0663af96ef79b4e9a252864511b1651836b3196eb6d1863ef9910 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:53:42,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:53:42,108 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 05:53:42,115 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:53:42,116 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:53:42,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:53:42,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:53:42,157 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:53:42,158 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:53:42,158 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:53:42,159 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:53:42,159 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:53:42,160 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:53:42,161 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:53:42,162 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:53:42,162 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:53:42,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:53:42,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:53:42,163 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:53:42,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:53:42,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:53:42,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:53:42,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:53:42,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:53:42,169 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:53:42,169 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:53:42,169 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:53:42,169 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:53:42,170 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:53:42,170 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:53:42,170 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:53:42,170 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:53:42,171 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:53:42,171 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:53:42,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:53:42,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:53:42,173 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:53:42,173 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:53:42,174 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:53:42,175 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:53:42,175 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:53:42,175 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:53:42,175 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:53:42,175 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_6abe580b-2d8a-42be-aa23-11eba503c923/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cda1efa412e0663af96ef79b4e9a252864511b1651836b3196eb6d1863ef9910 [2024-11-09 05:53:42,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:53:42,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:53:42,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:53:42,630 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:53:42,630 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:53:42,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/poly_256_thresh_2_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 05:53:44,742 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:53:45,199 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:53:45,201 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/sv-benchmarks/c/neural-networks/poly_256_thresh_2_safe.c-amalgamation.i [2024-11-09 05:53:45,237 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/data/4ef96e044/2a7fbe65c5204f4dbd05bedf5bd0a1fc/FLAG2cb7f462d [2024-11-09 05:53:45,256 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/data/4ef96e044/2a7fbe65c5204f4dbd05bedf5bd0a1fc [2024-11-09 05:53:45,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:53:45,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:53:45,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:53:45,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:53:45,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:53:45,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:53:45" (1/1) ... [2024-11-09 05:53:45,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20be0928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:45, skipping insertion in model container [2024-11-09 05:53:45,274 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:53:45" (1/1) ... [2024-11-09 05:53:45,399 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:53:46,555 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_6abe580b-2d8a-42be-aa23-11eba503c923/sv-benchmarks/c/neural-networks/poly_256_thresh_2_safe.c-amalgamation.i[71457,71470] [2024-11-09 05:53:46,973 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 05:53:47,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:53:47,028 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:53:47,109 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_6abe580b-2d8a-42be-aa23-11eba503c923/sv-benchmarks/c/neural-networks/poly_256_thresh_2_safe.c-amalgamation.i[71457,71470] [2024-11-09 05:53:47,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:53:47,562 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:53:47,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:47 WrapperNode [2024-11-09 05:53:47,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:53:47,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:53:47,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:53:47,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:53:47,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:47" (1/1) ... [2024-11-09 05:53:47,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:47" (1/1) ... [2024-11-09 05:53:47,888 INFO L138 Inliner]: procedures = 779, calls = 2138, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 2689 [2024-11-09 05:53:47,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:53:47,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:53:47,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:53:47,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:53:47,902 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:47" (1/1) ... [2024-11-09 05:53:47,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:47" (1/1) ... [2024-11-09 05:53:47,932 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:47" (1/1) ... [2024-11-09 05:53:47,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:47" (1/1) ... [2024-11-09 05:53:48,031 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:47" (1/1) ... [2024-11-09 05:53:48,052 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:47" (1/1) ... [2024-11-09 05:53:48,078 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:47" (1/1) ... [2024-11-09 05:53:48,088 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:47" (1/1) ... [2024-11-09 05:53:48,107 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:53:48,108 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:53:48,108 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:53:48,108 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:53:48,109 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:47" (1/1) ... [2024-11-09 05:53:48,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:53:48,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:53:48,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:53:48,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:53:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-09 05:53:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2024-11-09 05:53:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:53:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:53:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:53:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 05:53:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 05:53:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:53:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:53:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_idx2sub [2024-11-09 05:53:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_idx2sub [2024-11-09 05:53:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-09 05:53:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-09 05:53:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:53:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:53:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-09 05:53:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-09 05:53:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 05:53:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_dense [2024-11-09 05:53:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_dense [2024-11-09 05:53:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-09 05:53:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 05:53:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 05:53:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_sub2idx [2024-11-09 05:53:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_sub2idx [2024-11-09 05:53:48,553 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:53:48,556 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:54:14,926 INFO L? ?]: Removed 289 outVars from TransFormulas that were not future-live. [2024-11-09 05:54:14,926 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:54:14,950 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:54:14,951 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 05:54:14,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:54:14 BoogieIcfgContainer [2024-11-09 05:54:14,952 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:54:14,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:54:14,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:54:14,958 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:54:14,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:53:45" (1/3) ... [2024-11-09 05:54:14,960 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aad09ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:54:14, skipping insertion in model container [2024-11-09 05:54:14,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:47" (2/3) ... [2024-11-09 05:54:14,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aad09ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:54:14, skipping insertion in model container [2024-11-09 05:54:14,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:54:14" (3/3) ... [2024-11-09 05:54:14,963 INFO L112 eAbstractionObserver]: Analyzing ICFG poly_256_thresh_2_safe.c-amalgamation.i [2024-11-09 05:54:15,047 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:54:15,048 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:54:15,134 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:54:15,142 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;@345566c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:54:15,142 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:54:15,149 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 05:54:15,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 05:54:15,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:15,169 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 05:54:15,169 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:54:15,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:15,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1093136654, now seen corresponding path program 1 times [2024-11-09 05:54:15,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:54:15,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487415896] [2024-11-09 05:54:15,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:15,223 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 05:54:15,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:54:15,227 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 05:54:15,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 05:56:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:56:37,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 10221 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 05:56:37,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:56:37,422 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 05:56:37,422 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:56:37,423 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:56:37,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487415896] [2024-11-09 05:56:37,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487415896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:56:37,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:56:37,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:56:37,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789975402] [2024-11-09 05:56:37,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:56:37,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:56:37,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:56:37,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:56:37,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:56:37,459 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 05:56:37,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:56:37,515 INFO L93 Difference]: Finished difference Result 437 states and 666 transitions. [2024-11-09 05:56:37,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:56:37,518 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 05:56:37,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:56:37,530 INFO L225 Difference]: With dead ends: 437 [2024-11-09 05:56:37,531 INFO L226 Difference]: Without dead ends: 216 [2024-11-09 05:56:37,538 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 05:56:37,543 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 05:56:37,545 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 05:56:37,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-09 05:56:37,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-11-09 05:56:37,610 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 05:56:37,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 324 transitions. [2024-11-09 05:56:37,619 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 324 transitions. Word has length 58 [2024-11-09 05:56:37,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:56:37,623 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 324 transitions. [2024-11-09 05:56:37,623 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 05:56:37,623 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 324 transitions. [2024-11-09 05:56:37,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 05:56:37,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:56:37,626 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 05:56:37,829 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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)] Forcibly destroying the process [2024-11-09 05:56:37,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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)] Forceful destruction successful, exit code 137 [2024-11-09 05:56:37,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 05:56:37,875 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:56:37,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:56:37,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1133811404, now seen corresponding path program 1 times [2024-11-09 05:56:37,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:56:37,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [243570721] [2024-11-09 05:56:37,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:56:37,900 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 05:56:37,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:56:37,904 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 05:56:37,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 05:59:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:08,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 10222 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:59:08,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:59:09,831 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 05:59:09,831 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:59:09,831 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:59:09,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [243570721] [2024-11-09 05:59:09,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [243570721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:59:09,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:59:09,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:59:09,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319253329] [2024-11-09 05:59:09,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:59:09,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:59:09,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:59:09,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:59:09,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:59:09,840 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 05:59:10,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:59:10,691 INFO L93 Difference]: Finished difference Result 433 states and 650 transitions. [2024-11-09 05:59:10,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:59:10,692 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 05:59:10,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:59:10,701 INFO L225 Difference]: With dead ends: 433 [2024-11-09 05:59:10,702 INFO L226 Difference]: Without dead ends: 222 [2024-11-09 05:59:10,703 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 05:59:10,704 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 289 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:59:10,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 1012 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:59:10,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-09 05:59:10,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2024-11-09 05:59:10,728 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 05:59:10,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 331 transitions. [2024-11-09 05:59:10,730 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 331 transitions. Word has length 58 [2024-11-09 05:59:10,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:59:10,731 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 331 transitions. [2024-11-09 05:59:10,731 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 05:59:10,731 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 331 transitions. [2024-11-09 05:59:10,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 05:59:10,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:10,734 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] [2024-11-09 05:59:10,935 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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)] Forcibly destroying the process [2024-11-09 05:59:10,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 137 [2024-11-09 05:59:10,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 05:59:10,957 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:59:10,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:10,958 INFO L85 PathProgramCache]: Analyzing trace with hash -195449284, now seen corresponding path program 1 times [2024-11-09 05:59:10,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:59:10,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979227845] [2024-11-09 05:59:10,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:10,975 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 05:59:10,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:59:10,978 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 05:59:10,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 06:01:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:47,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 10223 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:01:47,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:48,788 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:01:48,788 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:01:48,788 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:01:48,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979227845] [2024-11-09 06:01:48,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979227845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:01:48,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:01:48,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:01:48,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108451680] [2024-11-09 06:01:48,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:01:48,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:01:48,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:01:48,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:01:48,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:01:48,792 INFO L87 Difference]: Start difference. First operand 222 states and 331 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 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 06:01:49,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:49,749 INFO L93 Difference]: Finished difference Result 445 states and 664 transitions. [2024-11-09 06:01:49,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:01:49,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 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 59 [2024-11-09 06:01:49,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:49,752 INFO L225 Difference]: With dead ends: 445 [2024-11-09 06:01:49,752 INFO L226 Difference]: Without dead ends: 228 [2024-11-09 06:01:49,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 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 06:01:49,755 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, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:49,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 1021 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:01:49,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-09 06:01:49,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2024-11-09 06:01:49,780 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 06:01:49,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 331 transitions. [2024-11-09 06:01:49,783 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 331 transitions. Word has length 59 [2024-11-09 06:01:49,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:49,783 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 331 transitions. [2024-11-09 06:01:49,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 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 06:01:49,784 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 331 transitions. [2024-11-09 06:01:49,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 06:01:49,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:49,787 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] [2024-11-09 06:01:49,987 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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)] Forcibly destroying the process [2024-11-09 06:01:50,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 137 [2024-11-09 06:01:50,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 06:01:50,020 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:01:50,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:50,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1738668290, now seen corresponding path program 1 times [2024-11-09 06:01:50,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:01:50,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702392621] [2024-11-09 06:01:50,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:50,030 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 06:01:50,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:01:50,032 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 06:01:50,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 06:04:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:04:24,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 10225 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:04:24,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:04:25,577 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:04:25,577 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:04:25,578 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:04:25,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702392621] [2024-11-09 06:04:25,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702392621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:04:25,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:04:25,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:04:25,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911745536] [2024-11-09 06:04:25,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:04:25,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:04:25,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:04:25,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:04:25,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:04:25,582 INFO L87 Difference]: Start difference. First operand 222 states and 331 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 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 06:04:26,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:04:26,583 INFO L93 Difference]: Finished difference Result 445 states and 664 transitions. [2024-11-09 06:04:26,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:04:26,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 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 61 [2024-11-09 06:04:26,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:04:26,589 INFO L225 Difference]: With dead ends: 445 [2024-11-09 06:04:26,591 INFO L226 Difference]: Without dead ends: 228 [2024-11-09 06:04:26,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 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 06:04:26,593 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 286 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1021 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 06:04:26,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1021 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:04:26,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-09 06:04:26,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2024-11-09 06:04:26,614 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 06:04:26,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 331 transitions. [2024-11-09 06:04:26,617 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 331 transitions. Word has length 61 [2024-11-09 06:04:26,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:04:26,618 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 331 transitions. [2024-11-09 06:04:26,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 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 06:04:26,618 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 331 transitions. [2024-11-09 06:04:26,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 06:04:26,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:04:26,621 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] [2024-11-09 06:04:26,821 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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)] Forcibly destroying the process [2024-11-09 06:04:26,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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)] Forceful destruction successful, exit code 137 [2024-11-09 06:04:26,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 06:04:26,852 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:04:26,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:04:26,853 INFO L85 PathProgramCache]: Analyzing trace with hash -830625228, now seen corresponding path program 1 times [2024-11-09 06:04:26,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:04:26,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516578786] [2024-11-09 06:04:26,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:04:26,863 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 06:04:26,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:04:26,866 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 06:04:26,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 06:06:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:06:57,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 10226 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:06:57,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:06:58,217 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:06:58,217 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:06:58,217 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:06:58,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516578786] [2024-11-09 06:06:58,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516578786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:06:58,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:06:58,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:06:58,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100855474] [2024-11-09 06:06:58,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:06:58,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:06:58,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:06:58,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:06:58,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:06:58,226 INFO L87 Difference]: Start difference. First operand 222 states and 331 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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 06:06:59,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:06:59,208 INFO L93 Difference]: Finished difference Result 445 states and 664 transitions. [2024-11-09 06:06:59,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:06:59,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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 62 [2024-11-09 06:06:59,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:06:59,212 INFO L225 Difference]: With dead ends: 445 [2024-11-09 06:06:59,212 INFO L226 Difference]: Without dead ends: 228 [2024-11-09 06:06:59,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 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 06:06:59,214 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 285 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1021 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 06:06:59,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1021 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:06:59,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-09 06:06:59,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2024-11-09 06:06:59,232 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 06:06:59,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 331 transitions. [2024-11-09 06:06:59,235 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 331 transitions. Word has length 62 [2024-11-09 06:06:59,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:06:59,236 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 331 transitions. [2024-11-09 06:06:59,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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 06:06:59,236 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 331 transitions. [2024-11-09 06:06:59,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 06:06:59,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:06:59,238 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 06:06:59,439 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 06:06:59,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 06:06:59,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 06:06:59,474 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:06:59,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:06:59,474 INFO L85 PathProgramCache]: Analyzing trace with hash 2055674952, now seen corresponding path program 1 times [2024-11-09 06:06:59,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:06:59,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916646033] [2024-11-09 06:06:59,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:06:59,483 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 06:06:59,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:06:59,485 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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 06:06:59,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6abe580b-2d8a-42be-aa23-11eba503c923/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