./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_3_unsafe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_3_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 7567bd09ed2fbcb0500454f7b0097ff0cf3746d28ef726ad3e5e7dd3be5d0d5d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:30:25,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:30:26,055 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:30:26,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:30:26,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:30:26,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:30:26,106 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:30:26,106 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:30:26,107 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:30:26,109 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:30:26,110 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:30:26,111 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:30:26,111 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:30:26,111 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:30:26,112 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:30:26,112 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:30:26,116 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:30:26,116 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:30:26,116 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:30:26,117 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:30:26,117 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:30:26,118 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:30:26,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:30:26,118 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:30:26,119 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:30:26,119 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:30:26,119 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:30:26,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:30:26,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:30:26,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:30:26,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:30:26,120 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:30:26,120 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:30:26,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:30:26,121 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:30:26,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:30:26,121 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:30:26,121 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:30:26,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:30:26,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:30:26,122 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:30:26,124 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:30:26,124 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:30:26,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:30:26,124 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:30:26,125 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:30:26,125 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:30:26,125 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_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7567bd09ed2fbcb0500454f7b0097ff0cf3746d28ef726ad3e5e7dd3be5d0d5d [2024-11-09 04:30:26,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:30:26,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:30:26,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:30:26,474 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:30:26,474 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:30:26,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_3_unsafe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 04:30:28,434 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:30:28,904 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:30:28,906 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_3_unsafe.c-amalgamation.i [2024-11-09 04:30:28,944 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/data/98bc6c615/f14d4ce19b7d4adaadabe6efc45590c0/FLAGdfbe90765 [2024-11-09 04:30:29,005 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/data/98bc6c615/f14d4ce19b7d4adaadabe6efc45590c0 [2024-11-09 04:30:29,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:30:29,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:30:29,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:30:29,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:30:29,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:30:29,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:30:29" (1/1) ... [2024-11-09 04:30:29,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cbd3aa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:29, skipping insertion in model container [2024-11-09 04:30:29,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:30:29" (1/1) ... [2024-11-09 04:30:29,112 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:30:30,280 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 04:30:30,286 INFO L158 Benchmark]: Toolchain (without parser) took 1273.58ms. Allocated memory is still 146.8MB. Free memory was 104.5MB in the beginning and 102.8MB in the end (delta: 1.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 04:30:30,287 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:30:30,287 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1269.44ms. Allocated memory is still 146.8MB. Free memory was 103.8MB in the beginning and 102.8MB in the end (delta: 969.6kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 04:30:30,289 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1269.44ms. Allocated memory is still 146.8MB. Free memory was 103.8MB in the beginning and 102.8MB in the end (delta: 969.6kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:627) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_3_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 7567bd09ed2fbcb0500454f7b0097ff0cf3746d28ef726ad3e5e7dd3be5d0d5d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:30:32,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:30:32,732 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 04:30:32,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:30:32,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:30:32,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:30:32,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:30:32,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:30:32,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:30:32,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:30:32,806 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:30:32,806 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:30:32,807 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:30:32,807 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:30:32,808 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:30:32,808 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:30:32,809 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:30:32,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:30:32,811 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:30:32,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:30:32,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:30:32,813 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:30:32,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:30:32,814 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:30:32,815 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:30:32,815 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 04:30:32,816 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:30:32,816 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 04:30:32,816 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:30:32,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:30:32,817 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:30:32,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:30:32,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:30:32,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:30:32,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:30:32,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:30:32,821 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:30:32,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:30:32,822 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:30:32,822 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 04:30:32,823 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 04:30:32,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:30:32,825 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:30:32,826 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_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7567bd09ed2fbcb0500454f7b0097ff0cf3746d28ef726ad3e5e7dd3be5d0d5d [2024-11-09 04:30:33,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:30:33,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:30:33,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:30:33,300 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:30:33,301 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:30:33,302 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_3_unsafe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 04:30:35,382 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:30:35,855 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:30:35,856 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_3_unsafe.c-amalgamation.i [2024-11-09 04:30:35,893 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/data/90286c57e/f9ca840afd2c4347904362752f443517/FLAGbe2888b65 [2024-11-09 04:30:35,912 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/data/90286c57e/f9ca840afd2c4347904362752f443517 [2024-11-09 04:30:35,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:30:35,918 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:30:35,920 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:30:35,920 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:30:35,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:30:35,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:30:35" (1/1) ... [2024-11-09 04:30:35,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785d4664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:35, skipping insertion in model container [2024-11-09 04:30:35,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:30:35" (1/1) ... [2024-11-09 04:30:36,030 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:30:37,061 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_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_3_unsafe.c-amalgamation.i[71465,71478] [2024-11-09 04:30:37,508 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 04:30:37,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:30:37,537 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:30:37,617 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_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_3_unsafe.c-amalgamation.i[71465,71478] [2024-11-09 04:30:37,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:30:38,101 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:30:38,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:38 WrapperNode [2024-11-09 04:30:38,102 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:30:38,103 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:30:38,103 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:30:38,103 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:30:38,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:38" (1/1) ... [2024-11-09 04:30:38,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:38" (1/1) ... [2024-11-09 04:30:38,393 INFO L138 Inliner]: procedures = 779, calls = 1656, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 2225 [2024-11-09 04:30:38,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:30:38,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:30:38,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:30:38,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:30:38,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:38" (1/1) ... [2024-11-09 04:30:38,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:38" (1/1) ... [2024-11-09 04:30:38,427 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:38" (1/1) ... [2024-11-09 04:30:38,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:38" (1/1) ... [2024-11-09 04:30:38,538 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:38" (1/1) ... [2024-11-09 04:30:38,562 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:38" (1/1) ... [2024-11-09 04:30:38,575 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:38" (1/1) ... [2024-11-09 04:30:38,593 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:38" (1/1) ... [2024-11-09 04:30:38,612 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:30:38,613 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:30:38,613 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:30:38,614 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:30:38,615 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:38" (1/1) ... [2024-11-09 04:30:38,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:30:38,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:30:38,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:30:38,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:30:38,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-09 04:30:38,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2024-11-09 04:30:38,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:30:38,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:30:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:30:38,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 04:30:38,686 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 04:30:38,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:30:38,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 04:30:38,686 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_idx2sub [2024-11-09 04:30:38,687 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_idx2sub [2024-11-09 04:30:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-09 04:30:38,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-09 04:30:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:30:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 04:30:38,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-09 04:30:38,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-09 04:30:38,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 04:30:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_dense [2024-11-09 04:30:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_dense [2024-11-09 04:30:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-09 04:30:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 04:30:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 04:30:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_sub2idx [2024-11-09 04:30:38,691 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_sub2idx [2024-11-09 04:30:39,015 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:30:39,018 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:31:01,627 INFO L? ?]: Removed 295 outVars from TransFormulas that were not future-live. [2024-11-09 04:31:01,628 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:31:01,648 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:31:01,650 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 04:31:01,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:31:01 BoogieIcfgContainer [2024-11-09 04:31:01,651 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:31:01,654 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:31:01,654 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:31:01,658 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:31:01,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:30:35" (1/3) ... [2024-11-09 04:31:01,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d63ec0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:31:01, skipping insertion in model container [2024-11-09 04:31:01,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:38" (2/3) ... [2024-11-09 04:31:01,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d63ec0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:31:01, skipping insertion in model container [2024-11-09 04:31:01,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:31:01" (3/3) ... [2024-11-09 04:31:01,663 INFO L112 eAbstractionObserver]: Analyzing ICFG poly_16_16_16_thresh_3_unsafe.c-amalgamation.i [2024-11-09 04:31:01,683 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:31:01,683 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:31:01,779 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:31:01,786 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;@6900967f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:31:01,787 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:31:01,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 222 states, 203 states have (on average 1.5467980295566504) internal successors, (314), 204 states have internal predecessors, (314), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 04:31:01,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 04:31:01,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:01,824 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:01,824 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:31:01,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:01,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1837915694, now seen corresponding path program 1 times [2024-11-09 04:31:01,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:31:01,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903185155] [2024-11-09 04:31:01,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:01,864 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:31:01,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:31:01,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:31:01,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:32:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:15,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 8091 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 04:32:15,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:32:15,082 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 04:32:15,083 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:32:15,083 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:32:15,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903185155] [2024-11-09 04:32:15,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903185155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:15,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:15,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:32:15,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200376915] [2024-11-09 04:32:15,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:15,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:32:15,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:32:15,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:32:15,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:32:15,130 INFO L87 Difference]: Start difference. First operand has 222 states, 203 states have (on average 1.5467980295566504) internal successors, (314), 204 states have internal predecessors, (314), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 04:32:15,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:15,186 INFO L93 Difference]: Finished difference Result 441 states and 676 transitions. [2024-11-09 04:32:15,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:32:15,189 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 108 [2024-11-09 04:32:15,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:15,199 INFO L225 Difference]: With dead ends: 441 [2024-11-09 04:32:15,200 INFO L226 Difference]: Without dead ends: 218 [2024-11-09 04:32:15,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 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 04:32:15,209 INFO L432 NwaCegarLoop]: 332 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, 332 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 04:32:15,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:32:15,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-09 04:32:15,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2024-11-09 04:32:15,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 200 states have (on average 1.52) internal successors, (304), 200 states have internal predecessors, (304), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 04:32:15,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 328 transitions. [2024-11-09 04:32:15,281 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 328 transitions. Word has length 108 [2024-11-09 04:32:15,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:15,281 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 328 transitions. [2024-11-09 04:32:15,282 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 04:32:15,282 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 328 transitions. [2024-11-09 04:32:15,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 04:32:15,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:15,288 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:15,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 04:32:15,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:32:15,490 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:32:15,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:15,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1833770000, now seen corresponding path program 1 times [2024-11-09 04:32:15,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:32:15,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424892882] [2024-11-09 04:32:15,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:15,504 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 04:32:15,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:32:15,508 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:32:15,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:33:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:34,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 8092 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:33:34,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:33:35,023 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-09 04:33:35,024 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:33:35,024 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:33:35,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424892882] [2024-11-09 04:33:35,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1424892882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:33:35,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:33:35,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:33:35,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227660100] [2024-11-09 04:33:35,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:33:35,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:33:35,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:33:35,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:33:35,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:33:35,029 INFO L87 Difference]: Start difference. First operand 218 states and 328 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, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 04:33:36,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:36,025 INFO L93 Difference]: Finished difference Result 437 states and 660 transitions. [2024-11-09 04:33:36,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:33:36,026 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, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 108 [2024-11-09 04:33:36,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:36,030 INFO L225 Difference]: With dead ends: 437 [2024-11-09 04:33:36,030 INFO L226 Difference]: Without dead ends: 224 [2024-11-09 04:33:36,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 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 04:33:36,033 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 474 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:36,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 1014 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 04:33:36,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-09 04:33:36,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2024-11-09 04:33:36,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-09 04:33:36,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 335 transitions. [2024-11-09 04:33:36,073 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 335 transitions. Word has length 108 [2024-11-09 04:33:36,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:36,074 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 335 transitions. [2024-11-09 04:33:36,074 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, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 04:33:36,074 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 335 transitions. [2024-11-09 04:33:36,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-09 04:33:36,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:36,079 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:36,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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)] Ended with exit code 0 [2024-11-09 04:33:36,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:33:36,280 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:33:36,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:36,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1828195570, now seen corresponding path program 1 times [2024-11-09 04:33:36,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:33:36,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303065701] [2024-11-09 04:33:36,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:36,291 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 04:33:36,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:33:36,292 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:33:36,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:34:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:59,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 8095 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:34:59,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:35:00,572 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-09 04:35:00,572 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:35:00,572 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:35:00,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303065701] [2024-11-09 04:35:00,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303065701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:35:00,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:35:00,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:35:00,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937874147] [2024-11-09 04:35:00,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:35:00,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:35:00,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:35:00,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:35:00,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:35:00,576 INFO L87 Difference]: Start difference. First operand 224 states and 335 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 04:35:01,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:35:01,527 INFO L93 Difference]: Finished difference Result 449 states and 674 transitions. [2024-11-09 04:35:01,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:35:01,529 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 111 [2024-11-09 04:35:01,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:35:01,531 INFO L225 Difference]: With dead ends: 449 [2024-11-09 04:35:01,532 INFO L226 Difference]: Without dead ends: 230 [2024-11-09 04:35:01,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:35:01,534 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 469 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:35:01,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 1023 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 04:35:01,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-09 04:35:01,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 224. [2024-11-09 04:35:01,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-09 04:35:01,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 335 transitions. [2024-11-09 04:35:01,556 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 335 transitions. Word has length 111 [2024-11-09 04:35:01,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:35:01,556 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 335 transitions. [2024-11-09 04:35:01,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 04:35:01,557 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 335 transitions. [2024-11-09 04:35:01,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 04:35:01,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:35:01,560 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:35:01,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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)] Ended with exit code 0 [2024-11-09 04:35:01,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:35:01,761 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:35:01,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:35:01,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1986861192, now seen corresponding path program 1 times [2024-11-09 04:35:01,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:35:01,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964647287] [2024-11-09 04:35:01,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:35:01,767 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 04:35:01,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:35:01,768 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:35:01,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:36:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:36:25,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 8101 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:36:25,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:36:26,197 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 04:36:26,197 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:36:26,198 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:36:26,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964647287] [2024-11-09 04:36:26,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964647287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:36:26,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:36:26,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:36:26,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604224617] [2024-11-09 04:36:26,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:36:26,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:36:26,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:36:26,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:36:26,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:36:26,202 INFO L87 Difference]: Start difference. First operand 224 states and 335 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 04:36:27,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:36:27,221 INFO L93 Difference]: Finished difference Result 449 states and 674 transitions. [2024-11-09 04:36:27,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:36:27,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 117 [2024-11-09 04:36:27,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:36:27,225 INFO L225 Difference]: With dead ends: 449 [2024-11-09 04:36:27,226 INFO L226 Difference]: Without dead ends: 230 [2024-11-09 04:36:27,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 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 04:36:27,229 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 288 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:36:27,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 1023 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 04:36:27,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-09 04:36:27,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 224. [2024-11-09 04:36:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-09 04:36:27,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 335 transitions. [2024-11-09 04:36:27,267 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 335 transitions. Word has length 117 [2024-11-09 04:36:27,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:36:27,268 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 335 transitions. [2024-11-09 04:36:27,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 04:36:27,269 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 335 transitions. [2024-11-09 04:36:27,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-09 04:36:27,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:36:27,273 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:36:27,477 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:36:27,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:36:27,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:36:27,503 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:36:27,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:36:27,503 INFO L85 PathProgramCache]: Analyzing trace with hash 970808848, now seen corresponding path program 1 times [2024-11-09 04:36:27,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:36:27,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907302841] [2024-11-09 04:36:27,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:36:27,513 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 04:36:27,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:36:27,517 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:36:27,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:37:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:48,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 8108 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:37:48,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:37:49,296 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 04:37:49,297 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:37:49,297 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:37:49,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907302841] [2024-11-09 04:37:49,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907302841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:37:49,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:37:49,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:37:49,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118987995] [2024-11-09 04:37:49,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:37:49,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:37:49,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:37:49,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:37:49,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:37:49,301 INFO L87 Difference]: Start difference. First operand 224 states and 335 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 04:37:50,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:37:50,345 INFO L93 Difference]: Finished difference Result 449 states and 674 transitions. [2024-11-09 04:37:50,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:37:50,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 124 [2024-11-09 04:37:50,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:37:50,349 INFO L225 Difference]: With dead ends: 449 [2024-11-09 04:37:50,349 INFO L226 Difference]: Without dead ends: 230 [2024-11-09 04:37:50,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 119 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 04:37:50,352 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 466 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:37:50,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1023 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 04:37:50,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-09 04:37:50,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 224. [2024-11-09 04:37:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-09 04:37:50,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 335 transitions. [2024-11-09 04:37:50,368 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 335 transitions. Word has length 124 [2024-11-09 04:37:50,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:37:50,368 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 335 transitions. [2024-11-09 04:37:50,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 04:37:50,369 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 335 transitions. [2024-11-09 04:37:50,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 04:37:50,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:37:50,371 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:37:50,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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)] Ended with exit code 0 [2024-11-09 04:37:50,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:37:50,572 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:37:50,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:37:50,573 INFO L85 PathProgramCache]: Analyzing trace with hash 919434852, now seen corresponding path program 1 times [2024-11-09 04:37:50,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:37:50,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732434327] [2024-11-09 04:37:50,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:50,579 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 04:37:50,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:37:50,580 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:37:50,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 04:39:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:08,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 8101 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 04:39:08,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:39:10,201 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-09 04:39:10,201 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:39:10,201 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:39:10,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732434327] [2024-11-09 04:39:10,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732434327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:10,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:10,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:39:10,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026714365] [2024-11-09 04:39:10,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:10,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:39:10,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:39:10,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:39:10,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:39:10,204 INFO L87 Difference]: Start difference. First operand 224 states and 335 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 04:39:11,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:11,095 INFO L93 Difference]: Finished difference Result 449 states and 674 transitions. [2024-11-09 04:39:11,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:39:11,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 123 [2024-11-09 04:39:11,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:11,099 INFO L225 Difference]: With dead ends: 449 [2024-11-09 04:39:11,100 INFO L226 Difference]: Without dead ends: 230 [2024-11-09 04:39:11,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:39:11,102 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 531 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:11,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 950 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:39:11,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-09 04:39:11,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 224. [2024-11-09 04:39:11,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-09 04:39:11,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 335 transitions. [2024-11-09 04:39:11,124 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 335 transitions. Word has length 123 [2024-11-09 04:39:11,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:11,125 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 335 transitions. [2024-11-09 04:39:11,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 04:39:11,125 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 335 transitions. [2024-11-09 04:39:11,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-09 04:39:11,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:11,128 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:11,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-09 04:39:11,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:39:11,329 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:39:11,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:11,329 INFO L85 PathProgramCache]: Analyzing trace with hash -983398960, now seen corresponding path program 1 times [2024-11-09 04:39:11,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:39:11,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904924948] [2024-11-09 04:39:11,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:11,335 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 04:39:11,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:39:11,336 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:39:11,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-09 04:40:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:32,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 8116 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:40:32,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:40:34,546 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-09 04:40:34,546 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:40:34,546 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:40:34,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904924948] [2024-11-09 04:40:34,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904924948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:40:34,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:40:34,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:40:34,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714408450] [2024-11-09 04:40:34,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:40:34,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:40:34,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:40:34,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:40:34,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:40:34,549 INFO L87 Difference]: Start difference. First operand 224 states and 335 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 04:40:35,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:35,377 INFO L93 Difference]: Finished difference Result 229 states and 339 transitions. [2024-11-09 04:40:35,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:40:35,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 132 [2024-11-09 04:40:35,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:35,381 INFO L225 Difference]: With dead ends: 229 [2024-11-09 04:40:35,381 INFO L226 Difference]: Without dead ends: 224 [2024-11-09 04:40:35,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:40:35,382 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 284 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:35,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1026 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:40:35,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-09 04:40:35,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2024-11-09 04:40:35,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (14), 14 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-09 04:40:35,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 334 transitions. [2024-11-09 04:40:35,403 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 334 transitions. Word has length 132 [2024-11-09 04:40:35,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:35,404 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 334 transitions. [2024-11-09 04:40:35,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 04:40:35,404 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 334 transitions. [2024-11-09 04:40:35,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-09 04:40:35,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:35,407 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:35,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-09 04:40:35,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:40:35,611 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:40:35,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:35,611 INFO L85 PathProgramCache]: Analyzing trace with hash -791229985, now seen corresponding path program 1 times [2024-11-09 04:40:35,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:40:35,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451464239] [2024-11-09 04:40:35,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:35,617 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 04:40:35,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:40:35,620 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:40:35,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-09 04:41:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:56,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 8110 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:41:56,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:41:58,433 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-09 04:41:58,433 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:41:58,433 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:41:58,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451464239] [2024-11-09 04:41:58,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451464239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:41:58,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:41:58,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:41:58,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037530820] [2024-11-09 04:41:58,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:58,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:41:58,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:41:58,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:41:58,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:41:58,436 INFO L87 Difference]: Start difference. First operand 224 states and 334 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 04:41:59,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:59,323 INFO L93 Difference]: Finished difference Result 235 states and 345 transitions. [2024-11-09 04:41:59,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:41:59,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 126 [2024-11-09 04:41:59,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:59,328 INFO L225 Difference]: With dead ends: 235 [2024-11-09 04:41:59,328 INFO L226 Difference]: Without dead ends: 220 [2024-11-09 04:41:59,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:41:59,329 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 277 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:59,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 1020 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:41:59,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-09 04:41:59,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2024-11-09 04:41:59,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 200 states have (on average 1.505) internal successors, (301), 200 states have internal predecessors, (301), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (14), 14 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-09 04:41:59,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 327 transitions. [2024-11-09 04:41:59,351 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 327 transitions. Word has length 126 [2024-11-09 04:41:59,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:59,352 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 327 transitions. [2024-11-09 04:41:59,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 04:41:59,352 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 327 transitions. [2024-11-09 04:41:59,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 04:41:59,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:59,355 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:41:59,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-09 04:41:59,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:41:59,556 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:41:59,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:59,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1059552859, now seen corresponding path program 1 times [2024-11-09 04:41:59,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:41:59,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879017319] [2024-11-09 04:41:59,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:59,562 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 04:41:59,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:41:59,563 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:41:59,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-09 04:43:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:43:24,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 8111 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:43:24,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:43:26,637 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-09 04:43:26,638 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:43:26,638 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:43:26,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879017319] [2024-11-09 04:43:26,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879017319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:43:26,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:43:26,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:43:26,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660721133] [2024-11-09 04:43:26,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:43:26,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:43:26,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:43:26,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:43:26,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:43:26,641 INFO L87 Difference]: Start difference. First operand 220 states and 327 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 04:43:27,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:43:27,565 INFO L93 Difference]: Finished difference Result 231 states and 338 transitions. [2024-11-09 04:43:27,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:43:27,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 127 [2024-11-09 04:43:27,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:43:27,568 INFO L225 Difference]: With dead ends: 231 [2024-11-09 04:43:27,568 INFO L226 Difference]: Without dead ends: 216 [2024-11-09 04:43:27,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 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 04:43:27,569 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 450 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:43:27,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 993 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:43:27,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-09 04:43:27,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-11-09 04:43:27,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 196 states have (on average 1.5) internal successors, (294), 196 states have internal predecessors, (294), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (14), 14 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-09 04:43:27,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 320 transitions. [2024-11-09 04:43:27,590 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 320 transitions. Word has length 127 [2024-11-09 04:43:27,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:43:27,591 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 320 transitions. [2024-11-09 04:43:27,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 04:43:27,591 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 320 transitions. [2024-11-09 04:43:27,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 04:43:27,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:27,594 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:43:27,795 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forcibly destroying the process [2024-11-09 04:43:27,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 137 [2024-11-09 04:43:27,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:43:27,800 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:43:27,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:27,800 INFO L85 PathProgramCache]: Analyzing trace with hash -19525159, now seen corresponding path program 1 times [2024-11-09 04:43:27,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:43:27,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394540454] [2024-11-09 04:43:27,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:27,811 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 04:43:27,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:43:27,813 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:43:27,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-09 04:45:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:45:13,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 8113 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:45:13,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:45:15,511 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-09 04:45:15,512 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:45:15,512 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:45:15,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394540454] [2024-11-09 04:45:15,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394540454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:45:15,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:45:15,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:45:15,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143382856] [2024-11-09 04:45:15,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:45:15,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:45:15,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:45:15,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:45:15,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:45:15,514 INFO L87 Difference]: Start difference. First operand 216 states and 320 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 04:45:16,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:45:16,454 INFO L93 Difference]: Finished difference Result 227 states and 331 transitions. [2024-11-09 04:45:16,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:45:16,455 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 129 [2024-11-09 04:45:16,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:45:16,458 INFO L225 Difference]: With dead ends: 227 [2024-11-09 04:45:16,458 INFO L226 Difference]: Without dead ends: 212 [2024-11-09 04:45:16,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 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 04:45:16,460 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 439 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:45:16,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 966 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:45:16,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-09 04:45:16,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2024-11-09 04:45:16,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 192 states have (on average 1.4947916666666667) internal successors, (287), 192 states have internal predecessors, (287), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (14), 14 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-09 04:45:16,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 313 transitions. [2024-11-09 04:45:16,487 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 313 transitions. Word has length 129 [2024-11-09 04:45:16,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:45:16,488 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 313 transitions. [2024-11-09 04:45:16,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 04:45:16,488 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 313 transitions. [2024-11-09 04:45:16,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 04:45:16,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:45:16,493 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:45:16,693 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forcibly destroying the process [2024-11-09 04:45:16,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 137 [2024-11-09 04:45:16,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:45:16,715 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:45:16,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:45:16,716 INFO L85 PathProgramCache]: Analyzing trace with hash -142996361, now seen corresponding path program 1 times [2024-11-09 04:45:16,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:45:16,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660599686] [2024-11-09 04:45:16,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:45:16,724 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 04:45:16,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:45:16,726 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/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 04:45:16,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d4ce8e5-a3b0-45c9-a7f6-2ccad02b4d4e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process