./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/softsign_w16_r3_case_0_safe.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_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/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_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/softsign_w16_r3_case_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/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_cfa39ca4-892f-4a37-a224-9ee01567ebd2/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 ff5c98e56dfc357bacd6ab13b8fcd0fe3347d8b6948c51614760f56698811066 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:07:03,630 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:07:03,731 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:07:03,738 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:07:03,739 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:07:03,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:07:03,781 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:07:03,782 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:07:03,783 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:07:03,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:07:03,786 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:07:03,786 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:07:03,787 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:07:03,791 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:07:03,791 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:07:03,792 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:07:03,792 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:07:03,792 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:07:03,793 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:07:03,793 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:07:03,793 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:07:03,795 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:07:03,796 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:07:03,796 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:07:03,797 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:07:03,797 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:07:03,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:07:03,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:07:03,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:07:03,798 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:07:03,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:07:03,798 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:07:03,799 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:07:03,801 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:07:03,801 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:07:03,801 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:07:03,802 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:07:03,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:07:03,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:07:03,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:07:03,803 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:07:03,803 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:07:03,803 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:07:03,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:07:03,804 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:07:03,805 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:07:03,805 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:07:03,805 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_cfa39ca4-892f-4a37-a224-9ee01567ebd2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5c98e56dfc357bacd6ab13b8fcd0fe3347d8b6948c51614760f56698811066 [2024-11-09 05:07:04,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:07:04,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:07:04,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:07:04,137 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:07:04,138 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:07:04,140 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/softsign_w16_r3_case_0_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 05:07:06,411 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:07:06,900 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:07:06,901 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/sv-benchmarks/c/neural-networks/softsign_w16_r3_case_0_safe.c-amalgamation.i [2024-11-09 05:07:06,936 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/data/f26414c96/4bb9d69f9a2a420da3d194d714cf6ab2/FLAG9ebffb0c1 [2024-11-09 05:07:07,008 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/data/f26414c96/4bb9d69f9a2a420da3d194d714cf6ab2 [2024-11-09 05:07:07,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:07:07,013 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:07:07,017 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:07:07,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:07:07,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:07:07,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:07:07" (1/1) ... [2024-11-09 05:07:07,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e46170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:07, skipping insertion in model container [2024-11-09 05:07:07,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:07:07" (1/1) ... [2024-11-09 05:07:07,153 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:07:08,788 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_cfa39ca4-892f-4a37-a224-9ee01567ebd2/sv-benchmarks/c/neural-networks/softsign_w16_r3_case_0_safe.c-amalgamation.i[72246,72259] [2024-11-09 05:07:09,314 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:792) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2578) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:307) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:792) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:792) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1520) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224) 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.handleLoopBody(CHandler.java:3634) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1577) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:227) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1167) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1652) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3539) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2522) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:642) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 05:07:09,327 INFO L158 Benchmark]: Toolchain (without parser) took 2309.16ms. Allocated memory is still 130.0MB. Free memory was 82.5MB in the beginning and 68.2MB in the end (delta: 14.2MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2024-11-09 05:07:09,332 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 104.9MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:07:09,333 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2303.94ms. Allocated memory is still 130.0MB. Free memory was 82.1MB in the beginning and 68.2MB in the end (delta: 13.8MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2024-11-09 05:07:09,335 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 104.9MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2303.94ms. Allocated memory is still 130.0MB. Free memory was 82.1MB in the beginning and 68.2MB in the end (delta: 13.8MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: 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_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/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_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/softsign_w16_r3_case_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/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_cfa39ca4-892f-4a37-a224-9ee01567ebd2/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 ff5c98e56dfc357bacd6ab13b8fcd0fe3347d8b6948c51614760f56698811066 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:07:12,019 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:07:12,139 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 05:07:12,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:07:12,146 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:07:12,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:07:12,177 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:07:12,177 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:07:12,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:07:12,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:07:12,179 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:07:12,179 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:07:12,180 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:07:12,180 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:07:12,181 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:07:12,181 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:07:12,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:07:12,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:07:12,183 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:07:12,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:07:12,188 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:07:12,189 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:07:12,189 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:07:12,189 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:07:12,190 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:07:12,190 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:07:12,190 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:07:12,191 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:07:12,191 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:07:12,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:07:12,191 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:07:12,193 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:07:12,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:07:12,194 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:07:12,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:07:12,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:07:12,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:07:12,195 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:07:12,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:07:12,195 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:07:12,196 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:07:12,198 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:07:12,198 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:07:12,198 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_cfa39ca4-892f-4a37-a224-9ee01567ebd2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5c98e56dfc357bacd6ab13b8fcd0fe3347d8b6948c51614760f56698811066 [2024-11-09 05:07:12,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:07:12,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:07:12,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:07:12,767 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:07:12,767 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:07:12,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/softsign_w16_r3_case_0_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 05:07:15,317 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:07:15,936 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:07:15,936 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/sv-benchmarks/c/neural-networks/softsign_w16_r3_case_0_safe.c-amalgamation.i [2024-11-09 05:07:15,990 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/data/0b97fc580/ba0e343f91944193bfa3b09e7821746c/FLAG83f76bad0 [2024-11-09 05:07:16,414 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/data/0b97fc580/ba0e343f91944193bfa3b09e7821746c [2024-11-09 05:07:16,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:07:16,418 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:07:16,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:07:16,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:07:16,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:07:16,430 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:07:16" (1/1) ... [2024-11-09 05:07:16,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15037deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:16, skipping insertion in model container [2024-11-09 05:07:16,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:07:16" (1/1) ... [2024-11-09 05:07:16,524 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:07:17,895 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_cfa39ca4-892f-4a37-a224-9ee01567ebd2/sv-benchmarks/c/neural-networks/softsign_w16_r3_case_0_safe.c-amalgamation.i[72246,72259] [2024-11-09 05:07:18,581 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:07:18,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:07:18,691 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:07:18,768 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_cfa39ca4-892f-4a37-a224-9ee01567ebd2/sv-benchmarks/c/neural-networks/softsign_w16_r3_case_0_safe.c-amalgamation.i[72246,72259] [2024-11-09 05:07:19,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:07:19,358 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:07:19,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:19 WrapperNode [2024-11-09 05:07:19,358 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:07:19,360 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:07:19,360 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:07:19,360 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:07:19,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:19" (1/1) ... [2024-11-09 05:07:19,494 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:19" (1/1) ... [2024-11-09 05:07:19,652 INFO L138 Inliner]: procedures = 780, calls = 2929, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 1112 [2024-11-09 05:07:19,653 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:07:19,653 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:07:19,654 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:07:19,654 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:07:19,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:19" (1/1) ... [2024-11-09 05:07:19,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:19" (1/1) ... [2024-11-09 05:07:19,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:19" (1/1) ... [2024-11-09 05:07:19,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:19" (1/1) ... [2024-11-09 05:07:19,768 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:19" (1/1) ... [2024-11-09 05:07:19,783 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:19" (1/1) ... [2024-11-09 05:07:19,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:19" (1/1) ... [2024-11-09 05:07:19,813 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:19" (1/1) ... [2024-11-09 05:07:19,841 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:07:19,842 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:07:19,842 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:07:19,842 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:07:19,847 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:19" (1/1) ... [2024-11-09 05:07:19,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:07:19,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:07:19,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:07:19,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:07:19,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-09 05:07:19,937 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNN [2024-11-09 05:07:19,937 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNN [2024-11-09 05:07:19,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2024-11-09 05:07:19,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:07:19,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:07:19,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:07:19,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 05:07:19,940 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 05:07:19,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:07:19,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:07:19,940 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_affine_matmul [2024-11-09 05:07:19,940 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_affine_matmul [2024-11-09 05:07:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-09 05:07:19,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-09 05:07:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:07:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:07:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-09 05:07:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-09 05:07:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNNcell [2024-11-09 05:07:19,943 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNNcell [2024-11-09 05:07:19,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 05:07:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-09 05:07:19,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 05:07:20,352 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:07:20,356 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:07:35,531 INFO L? ?]: Removed 165 outVars from TransFormulas that were not future-live. [2024-11-09 05:07:35,531 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:07:35,591 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:07:35,591 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:07:35,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:07:35 BoogieIcfgContainer [2024-11-09 05:07:35,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:07:35,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:07:35,596 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:07:35,600 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:07:35,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:07:16" (1/3) ... [2024-11-09 05:07:35,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72097112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:07:35, skipping insertion in model container [2024-11-09 05:07:35,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:19" (2/3) ... [2024-11-09 05:07:35,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72097112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:07:35, skipping insertion in model container [2024-11-09 05:07:35,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:07:35" (3/3) ... [2024-11-09 05:07:35,604 INFO L112 eAbstractionObserver]: Analyzing ICFG softsign_w16_r3_case_0_safe.c-amalgamation.i [2024-11-09 05:07:35,620 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:07:35,620 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:07:35,705 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:07:35,714 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;@391b4ca6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:07:35,714 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:07:35,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 137 states have (on average 1.532846715328467) internal successors, (210), 138 states have internal predecessors, (210), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 05:07:35,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 05:07:35,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:07:35,732 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:07:35,733 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:07:35,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:07:35,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1557366353, now seen corresponding path program 1 times [2024-11-09 05:07:35,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:07:35,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045254871] [2024-11-09 05:07:35,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:07:35,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:07:35,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:07:35,779 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:07:35,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 05:08:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:08:21,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 5873 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 05:08:21,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:08:21,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:08:21,680 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:08:21,681 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:08:21,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045254871] [2024-11-09 05:08:21,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045254871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:08:21,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:08:21,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:08:21,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272584304] [2024-11-09 05:08:21,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:08:21,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:08:21,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:08:21,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:08:21,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:08:21,728 INFO L87 Difference]: Start difference. First operand has 151 states, 137 states have (on average 1.532846715328467) internal successors, (210), 138 states have internal predecessors, (210), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:08:21,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:08:21,802 INFO L93 Difference]: Finished difference Result 298 states and 442 transitions. [2024-11-09 05:08:21,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:08:21,805 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-09 05:08:21,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:08:21,819 INFO L225 Difference]: With dead ends: 298 [2024-11-09 05:08:21,819 INFO L226 Difference]: Without dead ends: 147 [2024-11-09 05:08:21,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:08:21,830 INFO L432 NwaCegarLoop]: 216 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, 216 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:08:21,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:08:21,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-09 05:08:21,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-09 05:08:21,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 134 states have (on average 1.4776119402985075) internal successors, (198), 134 states have internal predecessors, (198), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 05:08:21,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 212 transitions. [2024-11-09 05:08:21,914 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 212 transitions. Word has length 35 [2024-11-09 05:08:21,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:08:21,917 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 212 transitions. [2024-11-09 05:08:21,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:08:21,918 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 212 transitions. [2024-11-09 05:08:21,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 05:08:21,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:08:21,921 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:08:22,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-09 05:08:22,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:08:22,123 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:08:22,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:08:22,125 INFO L85 PathProgramCache]: Analyzing trace with hash -2004222575, now seen corresponding path program 1 times [2024-11-09 05:08:22,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:08:22,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406428236] [2024-11-09 05:08:22,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:08:22,135 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:08:22,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:08:22,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:08:22,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 05:09:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:09:09,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 5873 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 05:09:09,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:09:09,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:09:09,458 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:09:09,458 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:09:09,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406428236] [2024-11-09 05:09:09,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406428236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:09:09,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:09:09,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:09:09,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217812375] [2024-11-09 05:09:09,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:09:09,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:09:09,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:09:09,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:09:09,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:09:09,464 INFO L87 Difference]: Start difference. First operand 147 states and 212 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:09:11,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:09:11,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:09:11,583 INFO L93 Difference]: Finished difference Result 291 states and 420 transitions. [2024-11-09 05:09:11,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:09:11,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-09 05:09:11,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:09:11,589 INFO L225 Difference]: With dead ends: 291 [2024-11-09 05:09:11,590 INFO L226 Difference]: Without dead ends: 147 [2024-11-09 05:09:11,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:09:11,592 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:09:11,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 420 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 05:09:11,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-09 05:09:11,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-09 05:09:11,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 134 states have (on average 1.4701492537313432) internal successors, (197), 134 states have internal predecessors, (197), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 05:09:11,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 211 transitions. [2024-11-09 05:09:11,610 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 211 transitions. Word has length 35 [2024-11-09 05:09:11,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:09:11,611 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 211 transitions. [2024-11-09 05:09:11,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:09:11,611 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 211 transitions. [2024-11-09 05:09:11,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 05:09:11,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:09:11,613 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:09:11,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-09 05:09:11,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:09:11,814 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:09:11,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:09:11,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1931836017, now seen corresponding path program 1 times [2024-11-09 05:09:11,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:09:11,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741952538] [2024-11-09 05:09:11,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:09:11,829 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:09:11,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:09:11,833 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:09:11,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 05:09:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:09:55,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 5875 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 05:09:55,619 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:09:55,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:09:55,683 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:09:55,684 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:09:55,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741952538] [2024-11-09 05:09:55,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741952538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:09:55,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:09:55,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:09:55,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654634024] [2024-11-09 05:09:55,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:09:55,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:09:55,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:09:55,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:09:55,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:09:55,688 INFO L87 Difference]: Start difference. First operand 147 states and 211 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:09:57,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:09:57,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:09:57,804 INFO L93 Difference]: Finished difference Result 276 states and 399 transitions. [2024-11-09 05:09:57,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:09:57,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-09 05:09:57,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:09:57,807 INFO L225 Difference]: With dead ends: 276 [2024-11-09 05:09:57,807 INFO L226 Difference]: Without dead ends: 147 [2024-11-09 05:09:57,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:09:57,810 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 0 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:09:57,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 417 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 05:09:57,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-09 05:09:57,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-09 05:09:57,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 134 states have (on average 1.462686567164179) internal successors, (196), 134 states have internal predecessors, (196), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 05:09:57,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 210 transitions. [2024-11-09 05:09:57,827 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 210 transitions. Word has length 35 [2024-11-09 05:09:57,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:09:57,828 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 210 transitions. [2024-11-09 05:09:57,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:09:57,829 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 210 transitions. [2024-11-09 05:09:57,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 05:09:57,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:09:57,831 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:09:57,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/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 05:09:58,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:09:58,032 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:09:58,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:09:58,033 INFO L85 PathProgramCache]: Analyzing trace with hash 62308689, now seen corresponding path program 1 times [2024-11-09 05:09:58,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:09:58,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557467749] [2024-11-09 05:09:58,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:09:58,040 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:09:58,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:09:58,042 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:09:58,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 05:10:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:41,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 5877 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:10:41,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:42,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:10:42,062 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:10:42,063 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:10:42,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557467749] [2024-11-09 05:10:42,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557467749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:10:42,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:10:42,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:10:42,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439175801] [2024-11-09 05:10:42,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:10:42,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:10:42,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:10:42,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:10:42,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:10:42,066 INFO L87 Difference]: Start difference. First operand 147 states and 210 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:10:42,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:42,254 INFO L93 Difference]: Finished difference Result 158 states and 223 transitions. [2024-11-09 05:10:42,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:10:42,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-09 05:10:42,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:42,260 INFO L225 Difference]: With dead ends: 158 [2024-11-09 05:10:42,260 INFO L226 Difference]: Without dead ends: 137 [2024-11-09 05:10:42,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:10:42,262 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 19 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:42,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 808 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:10:42,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-09 05:10:42,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-11-09 05:10:42,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 125 states have (on average 1.448) internal successors, (181), 125 states have internal predecessors, (181), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 05:10:42,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 193 transitions. [2024-11-09 05:10:42,275 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 193 transitions. Word has length 35 [2024-11-09 05:10:42,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:42,275 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 193 transitions. [2024-11-09 05:10:42,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:10:42,276 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 193 transitions. [2024-11-09 05:10:42,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 05:10:42,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:42,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:42,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-09 05:10:42,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:42,478 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:10:42,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:42,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1010589140, now seen corresponding path program 1 times [2024-11-09 05:10:42,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:10:42,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1626287713] [2024-11-09 05:10:42,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:42,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:42,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:10:42,485 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:10:42,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 05:17:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:17:33,618 INFO L255 TraceCheckSpWp]: Trace formula consists of 5877 conjuncts, 572 conjuncts are in the unsatisfiable core [2024-11-09 05:17:33,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:33,976 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 05:17:33,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 73 [2024-11-09 05:17:34,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:17:34,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:17:34,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:17:34,204 INFO L224 Elim1Store]: Index analysis took 116 ms [2024-11-09 05:17:34,553 INFO L349 Elim1Store]: treesize reduction 58, result has 24.7 percent of original size [2024-11-09 05:17:34,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 36 treesize of output 40 [2024-11-09 05:17:35,185 INFO L349 Elim1Store]: treesize reduction 40, result has 40.3 percent of original size [2024-11-09 05:17:35,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 93 treesize of output 92 [2024-11-09 05:17:42,365 INFO L349 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2024-11-09 05:17:42,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2024-11-09 05:17:42,805 INFO L349 Elim1Store]: treesize reduction 24, result has 44.2 percent of original size [2024-11-09 05:17:42,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 59 [2024-11-09 05:17:43,098 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-09 05:17:44,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 32 [2024-11-09 05:17:44,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:17:44,834 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:17:44,834 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:17:44,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1626287713] [2024-11-09 05:17:44,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1626287713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:17:44,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:17:44,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 05:17:44,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255472357] [2024-11-09 05:17:44,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:17:44,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:17:44,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:17:44,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:17:44,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:17:44,837 INFO L87 Difference]: Start difference. First operand 137 states and 193 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:46,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:17:48,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:17:50,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:17:52,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:17:54,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:17:57,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:17:59,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:18:02,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:04,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:06,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:08,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:10,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:12,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:14,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:18:16,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:18:20,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:22,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:23,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:25,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:27,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:18:31,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:33,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:37,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:37,721 INFO L93 Difference]: Finished difference Result 245 states and 357 transitions. [2024-11-09 05:18:37,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:18:37,724 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-09 05:18:37,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:37,727 INFO L225 Difference]: With dead ends: 245 [2024-11-09 05:18:37,727 INFO L226 Difference]: Without dead ends: 237 [2024-11-09 05:18:37,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:18:37,729 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 180 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 19 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:37,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1165 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 413 Invalid, 19 Unknown, 0 Unchecked, 52.6s Time] [2024-11-09 05:18:37,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-09 05:18:37,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 143. [2024-11-09 05:18:37,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 131 states have (on average 1.4427480916030535) internal successors, (189), 131 states have internal predecessors, (189), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 05:18:37,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 201 transitions. [2024-11-09 05:18:37,744 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 201 transitions. Word has length 35 [2024-11-09 05:18:37,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:37,745 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 201 transitions. [2024-11-09 05:18:37,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:37,745 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 201 transitions. [2024-11-09 05:18:37,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 05:18:37,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:37,746 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:18:37,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-09 05:18:37,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:18:37,947 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:18:37,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:37,948 INFO L85 PathProgramCache]: Analyzing trace with hash 241716164, now seen corresponding path program 1 times [2024-11-09 05:18:37,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:18:37,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366144066] [2024-11-09 05:18:37,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:37,952 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:18:37,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:18:37,953 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:18:37,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 05:19:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:16,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 5893 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:19:16,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:19:17,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:19:17,285 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:19:17,285 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:19:17,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366144066] [2024-11-09 05:19:17,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366144066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:17,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:17,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:19:17,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079091153] [2024-11-09 05:19:17,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:17,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:19:17,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:19:17,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:19:17,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:19:17,287 INFO L87 Difference]: Start difference. First operand 143 states and 201 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:19:17,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:17,651 INFO L93 Difference]: Finished difference Result 264 states and 378 transitions. [2024-11-09 05:19:17,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:19:17,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2024-11-09 05:19:17,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:17,652 INFO L225 Difference]: With dead ends: 264 [2024-11-09 05:19:17,653 INFO L226 Difference]: Without dead ends: 136 [2024-11-09 05:19:17,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:19:17,654 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 22 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:17,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 746 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:19:17,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-09 05:19:17,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-11-09 05:19:17,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 124 states have (on average 1.4193548387096775) internal successors, (176), 124 states have internal predecessors, (176), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 05:19:17,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 188 transitions. [2024-11-09 05:19:17,664 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 188 transitions. Word has length 39 [2024-11-09 05:19:17,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:17,664 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 188 transitions. [2024-11-09 05:19:17,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:19:17,665 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 188 transitions. [2024-11-09 05:19:17,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 05:19:17,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:17,667 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:19:17,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-09 05:19:17,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:19:17,868 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:19:17,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:17,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1675443574, now seen corresponding path program 1 times [2024-11-09 05:19:17,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:19:17,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038255386] [2024-11-09 05:19:17,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:17,873 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:19:17,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:19:17,876 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:19:17,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-09 05:19:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:56,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 6064 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 05:19:56,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:19:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:19:59,745 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:20:12,433 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:20:12,433 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:20:12,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038255386] [2024-11-09 05:20:12,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038255386] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:20:12,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [86008489] [2024-11-09 05:20:12,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:12,434 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:20:12,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:20:12,437 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:20:12,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-09 05:20:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:53,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 6064 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:20:53,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:20:55,595 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:55,595 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:20:55,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [86008489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:55,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:20:55,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12, 13] total 24 [2024-11-09 05:20:55,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999959546] [2024-11-09 05:20:55,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:55,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:20:55,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:20:55,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:20:55,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2024-11-09 05:20:55,599 INFO L87 Difference]: Start difference. First operand 136 states and 188 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-09 05:20:56,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:56,028 INFO L93 Difference]: Finished difference Result 255 states and 362 transitions. [2024-11-09 05:20:56,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:20:56,030 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) Word has length 83 [2024-11-09 05:20:56,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:56,031 INFO L225 Difference]: With dead ends: 255 [2024-11-09 05:20:56,031 INFO L226 Difference]: Without dead ends: 144 [2024-11-09 05:20:56,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2024-11-09 05:20:56,033 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 44 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:56,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 702 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:20:56,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-09 05:20:56,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 138. [2024-11-09 05:20:56,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 126 states have (on average 1.4126984126984128) internal successors, (178), 126 states have internal predecessors, (178), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 05:20:56,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 190 transitions. [2024-11-09 05:20:56,044 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 190 transitions. Word has length 83 [2024-11-09 05:20:56,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:56,044 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 190 transitions. [2024-11-09 05:20:56,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-09 05:20:56,045 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 190 transitions. [2024-11-09 05:20:56,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-09 05:20:56,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:56,048 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:56,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-09 05:20:56,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/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 05:20:56,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:20:56,450 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:20:56,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:56,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1675916522, now seen corresponding path program 1 times [2024-11-09 05:20:56,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:20:56,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109293007] [2024-11-09 05:20:56,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:56,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:20:56,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:20:56,455 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:20:56,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-09 05:21:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:36,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 6078 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 05:21:36,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:21:39,474 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:21:39,474 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:21:55,061 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:21:55,061 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:21:55,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109293007] [2024-11-09 05:21:55,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109293007] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:21:55,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [10539087] [2024-11-09 05:21:55,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:55,062 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:21:55,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:21:55,063 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:21:55,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa39ca4-892f-4a37-a224-9ee01567ebd2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process