./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_4_unsafe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/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_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_4_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/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_feff5d24-24f0-4c74-9098-a65e66730892/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 420465b4160ed82ad66ee38db211a67558da31154a8d696ca661ca97b6cc589d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:00:32,728 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:00:32,841 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:00:32,850 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:00:32,851 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:00:32,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:00:32,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:00:32,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:00:32,899 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:00:32,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:00:32,903 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:00:32,903 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:00:32,904 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:00:32,904 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:00:32,905 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:00:32,905 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:00:32,906 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:00:32,909 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:00:32,910 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:00:32,911 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:00:32,911 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:00:32,916 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:00:32,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:00:32,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:00:32,918 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:00:32,918 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:00:32,918 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:00:32,919 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:00:32,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:00:32,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:00:32,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:00:32,924 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:00:32,924 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:00:32,925 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:00:32,925 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:00:32,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:00:32,926 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:00:32,926 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:00:32,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:00:32,930 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:00:32,930 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:00:32,932 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:00:32,932 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:00:32,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:00:32,933 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:00:32,933 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:00:32,933 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:00:32,935 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_feff5d24-24f0-4c74-9098-a65e66730892/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 420465b4160ed82ad66ee38db211a67558da31154a8d696ca661ca97b6cc589d [2024-11-09 06:00:33,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:00:33,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:00:33,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:00:33,333 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:00:33,334 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:00:33,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_4_unsafe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 06:00:35,468 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:00:35,943 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:00:35,943 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_4_unsafe.c-amalgamation.i [2024-11-09 06:00:35,984 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/data/2e14a19f1/96f569d4eb334d3fa48e8e5e2d924f9f/FLAG11c6bf5c6 [2024-11-09 06:00:36,002 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/data/2e14a19f1/96f569d4eb334d3fa48e8e5e2d924f9f [2024-11-09 06:00:36,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:00:36,010 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:00:36,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:00:36,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:00:36,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:00:36,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:00:36" (1/1) ... [2024-11-09 06:00:36,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@247560c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:00:36, skipping insertion in model container [2024-11-09 06:00:36,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:00:36" (1/1) ... [2024-11-09 06:00:36,117 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:00:37,391 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3125) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1625) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1507) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:253) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:3216) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:3061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2295) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:144) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1237) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:215) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1167) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1652) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3539) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2522) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:642) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 06:00:37,398 INFO L158 Benchmark]: Toolchain (without parser) took 1387.12ms. Allocated memory is still 172.0MB. Free memory was 126.7MB in the beginning and 103.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 06:00:37,399 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:00:37,400 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1383.95ms. Allocated memory is still 172.0MB. Free memory was 126.7MB in the beginning and 103.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 06:00:37,402 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1383.95ms. Allocated memory is still 172.0MB. Free memory was 126.7MB in the beginning and 103.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:627) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/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_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_4_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/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_feff5d24-24f0-4c74-9098-a65e66730892/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 420465b4160ed82ad66ee38db211a67558da31154a8d696ca661ca97b6cc589d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:00:39,860 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:00:39,983 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 06:00:40,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:00:40,002 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:00:40,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:00:40,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:00:40,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:00:40,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:00:40,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:00:40,056 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:00:40,056 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:00:40,057 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:00:40,057 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:00:40,060 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:00:40,060 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:00:40,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:00:40,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:00:40,062 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:00:40,062 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:00:40,063 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:00:40,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:00:40,067 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:00:40,068 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:00:40,068 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:00:40,068 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:00:40,069 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:00:40,069 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:00:40,069 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:00:40,070 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:00:40,070 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:00:40,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:00:40,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:00:40,072 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:00:40,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:00:40,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:00:40,073 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:00:40,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:00:40,074 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:00:40,074 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:00:40,074 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:00:40,075 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:00:40,075 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:00:40,076 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_feff5d24-24f0-4c74-9098-a65e66730892/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 420465b4160ed82ad66ee38db211a67558da31154a8d696ca661ca97b6cc589d [2024-11-09 06:00:40,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:00:40,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:00:40,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:00:40,625 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:00:40,626 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:00:40,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_4_unsafe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 06:00:42,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:00:43,457 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:00:43,457 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_4_unsafe.c-amalgamation.i [2024-11-09 06:00:43,496 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/data/772385ced/559f0e89f7a2429ebb3d5246300dfc31/FLAGc9f27da3b [2024-11-09 06:00:43,522 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/data/772385ced/559f0e89f7a2429ebb3d5246300dfc31 [2024-11-09 06:00:43,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:00:43,528 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:00:43,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:00:43,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:00:43,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:00:43,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:00:43" (1/1) ... [2024-11-09 06:00:43,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f1a9c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:00:43, skipping insertion in model container [2024-11-09 06:00:43,544 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:00:43" (1/1) ... [2024-11-09 06:00:43,678 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:00:45,132 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_feff5d24-24f0-4c74-9098-a65e66730892/sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_4_unsafe.c-amalgamation.i[71467,71480] [2024-11-09 06:00:45,639 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 06:00:45,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:00:45,668 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:00:45,754 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_feff5d24-24f0-4c74-9098-a65e66730892/sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_4_unsafe.c-amalgamation.i[71467,71480] [2024-11-09 06:00:45,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:00:46,264 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:00:46,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:00:46 WrapperNode [2024-11-09 06:00:46,265 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:00:46,266 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:00:46,267 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:00:46,267 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:00:46,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:00:46" (1/1) ... [2024-11-09 06:00:46,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:00:46" (1/1) ... [2024-11-09 06:00:46,491 INFO L138 Inliner]: procedures = 779, calls = 784, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1348 [2024-11-09 06:00:46,492 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:00:46,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:00:46,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:00:46,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:00:46,511 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:00:46" (1/1) ... [2024-11-09 06:00:46,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:00:46" (1/1) ... [2024-11-09 06:00:46,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:00:46" (1/1) ... [2024-11-09 06:00:46,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:00:46" (1/1) ... [2024-11-09 06:00:46,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:00:46" (1/1) ... [2024-11-09 06:00:46,677 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:00:46" (1/1) ... [2024-11-09 06:00:46,694 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:00:46" (1/1) ... [2024-11-09 06:00:46,708 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:00:46" (1/1) ... [2024-11-09 06:00:46,735 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:00:46,739 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:00:46,740 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:00:46,740 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:00:46,741 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:00:46" (1/1) ... [2024-11-09 06:00:46,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:00:46,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:00:46,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:00:46,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:00:46,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-09 06:00:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2024-11-09 06:00:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:00:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:00:46,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:00:46,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 06:00:46,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 06:00:46,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:00:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:00:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_idx2sub [2024-11-09 06:00:46,837 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_idx2sub [2024-11-09 06:00:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-09 06:00:46,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-09 06:00:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:00:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:00:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-09 06:00:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-09 06:00:46,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 06:00:46,839 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_dense [2024-11-09 06:00:46,839 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_dense [2024-11-09 06:00:46,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-09 06:00:46,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 06:00:46,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 06:00:46,839 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_sub2idx [2024-11-09 06:00:46,840 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_sub2idx [2024-11-09 06:00:47,286 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:00:47,289 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:01:08,609 INFO L? ?]: Removed 295 outVars from TransFormulas that were not future-live. [2024-11-09 06:01:08,609 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:01:08,638 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:01:08,639 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 06:01:08,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:01:08 BoogieIcfgContainer [2024-11-09 06:01:08,640 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:01:08,645 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:01:08,645 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:01:08,649 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:01:08,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:00:43" (1/3) ... [2024-11-09 06:01:08,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234da77a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:01:08, skipping insertion in model container [2024-11-09 06:01:08,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:00:46" (2/3) ... [2024-11-09 06:01:08,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234da77a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:01:08, skipping insertion in model container [2024-11-09 06:01:08,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:01:08" (3/3) ... [2024-11-09 06:01:08,656 INFO L112 eAbstractionObserver]: Analyzing ICFG poly_8_8_8_thresh_4_unsafe.c-amalgamation.i [2024-11-09 06:01:08,681 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:01:08,681 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:01:08,790 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:01:08,798 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;@5b6f4316, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:01:08,798 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:01:08,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 222 states, 203 states have (on average 1.5467980295566504) internal successors, (314), 204 states have internal predecessors, (314), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:01:08,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 06:01:08,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:08,843 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:01:08,844 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:01:08,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:08,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1837915694, now seen corresponding path program 1 times [2024-11-09 06:01:08,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:01:08,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458260861] [2024-11-09 06:01:08,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:08,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:01:08,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:01:08,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:01:08,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/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 06:01:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:18,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 2635 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:01:18,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:18,221 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:01:18,221 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:01:18,222 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:01:18,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458260861] [2024-11-09 06:01:18,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458260861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:01:18,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:01:18,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:01:18,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729103676] [2024-11-09 06:01:18,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:01:18,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:01:18,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:01:18,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:01:18,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:01:18,275 INFO L87 Difference]: Start difference. First operand has 222 states, 203 states have (on average 1.5467980295566504) internal successors, (314), 204 states have internal predecessors, (314), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 06:01:18,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:18,379 INFO L93 Difference]: Finished difference Result 441 states and 676 transitions. [2024-11-09 06:01:18,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:01:18,383 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 108 [2024-11-09 06:01:18,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:18,397 INFO L225 Difference]: With dead ends: 441 [2024-11-09 06:01:18,398 INFO L226 Difference]: Without dead ends: 218 [2024-11-09 06:01:18,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:01:18,413 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:18,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:01:18,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-09 06:01:18,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2024-11-09 06:01:18,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 200 states have (on average 1.52) internal successors, (304), 200 states have internal predecessors, (304), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:01:18,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 328 transitions. [2024-11-09 06:01:18,505 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 328 transitions. Word has length 108 [2024-11-09 06:01:18,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:18,505 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 328 transitions. [2024-11-09 06:01:18,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 06:01:18,506 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 328 transitions. [2024-11-09 06:01:18,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 06:01:18,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:18,516 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:01:18,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 06:01:18,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:01:18,719 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:01:18,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:18,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1833770000, now seen corresponding path program 1 times [2024-11-09 06:01:18,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:01:18,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008111097] [2024-11-09 06:01:18,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:18,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:01:18,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:01:18,734 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:01:18,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/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 06:01:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:28,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 2636 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:01:28,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:29,019 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-09 06:01:29,020 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:01:29,020 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:01:29,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2008111097] [2024-11-09 06:01:29,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2008111097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:01:29,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:01:29,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:01:29,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069962564] [2024-11-09 06:01:29,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:01:29,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:01:29,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:01:29,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:01:29,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:01:29,026 INFO L87 Difference]: Start difference. First operand 218 states and 328 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:01:30,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:30,041 INFO L93 Difference]: Finished difference Result 437 states and 660 transitions. [2024-11-09 06:01:30,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:01:30,043 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 108 [2024-11-09 06:01:30,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:30,048 INFO L225 Difference]: With dead ends: 437 [2024-11-09 06:01:30,048 INFO L226 Difference]: Without dead ends: 224 [2024-11-09 06:01:30,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:01:30,052 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 474 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:30,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1014 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:01:30,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-09 06:01:30,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2024-11-09 06:01:30,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-09 06:01:30,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 335 transitions. [2024-11-09 06:01:30,100 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 335 transitions. Word has length 108 [2024-11-09 06:01:30,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:30,101 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 335 transitions. [2024-11-09 06:01:30,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:01:30,102 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 335 transitions. [2024-11-09 06:01:30,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-09 06:01:30,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:30,107 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:01:30,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/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 06:01:30,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:01:30,308 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:01:30,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:30,309 INFO L85 PathProgramCache]: Analyzing trace with hash 657366440, now seen corresponding path program 1 times [2024-11-09 06:01:30,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:01:30,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [856195813] [2024-11-09 06:01:30,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:30,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:01:30,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:01:30,323 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:01:30,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 06:01:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:39,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 2640 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:01:39,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:40,514 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-09 06:01:40,514 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:01:40,515 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:01:40,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [856195813] [2024-11-09 06:01:40,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [856195813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:01:40,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:01:40,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:01:40,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083714575] [2024-11-09 06:01:40,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:01:40,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:01:40,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:01:40,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:01:40,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:01:40,520 INFO L87 Difference]: Start difference. First operand 224 states and 335 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:01:41,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:41,457 INFO L93 Difference]: Finished difference Result 449 states and 674 transitions. [2024-11-09 06:01:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:01:41,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 112 [2024-11-09 06:01:41,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:41,462 INFO L225 Difference]: With dead ends: 449 [2024-11-09 06:01:41,462 INFO L226 Difference]: Without dead ends: 230 [2024-11-09 06:01:41,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:01:41,466 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 469 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:41,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 1023 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:01:41,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-09 06:01:41,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 224. [2024-11-09 06:01:41,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-09 06:01:41,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 335 transitions. [2024-11-09 06:01:41,507 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 335 transitions. Word has length 112 [2024-11-09 06:01:41,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:41,508 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 335 transitions. [2024-11-09 06:01:41,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:01:41,509 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 335 transitions. [2024-11-09 06:01:41,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 06:01:41,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:41,521 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:01:41,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/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 06:01:41,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:01:41,722 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:01:41,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:41,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1986861192, now seen corresponding path program 1 times [2024-11-09 06:01:41,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:01:41,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452459394] [2024-11-09 06:01:41,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:41,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:01:41,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:01:41,733 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:01:41,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 06:01:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:52,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:01:52,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:53,062 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 06:01:53,062 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:01:53,063 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:01:53,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1452459394] [2024-11-09 06:01:53,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1452459394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:01:53,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:01:53,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:01:53,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558574726] [2024-11-09 06:01:53,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:01:53,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:01:53,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:01:53,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:01:53,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:01:53,072 INFO L87 Difference]: Start difference. First operand 224 states and 335 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:01:54,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:54,050 INFO L93 Difference]: Finished difference Result 449 states and 674 transitions. [2024-11-09 06:01:54,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:01:54,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 117 [2024-11-09 06:01:54,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:54,057 INFO L225 Difference]: With dead ends: 449 [2024-11-09 06:01:54,058 INFO L226 Difference]: Without dead ends: 230 [2024-11-09 06:01:54,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:01:54,061 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 285 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:54,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1023 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:01:54,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-09 06:01:54,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 224. [2024-11-09 06:01:54,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-09 06:01:54,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 335 transitions. [2024-11-09 06:01:54,100 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 335 transitions. Word has length 117 [2024-11-09 06:01:54,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:54,102 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 335 transitions. [2024-11-09 06:01:54,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:01:54,103 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 335 transitions. [2024-11-09 06:01:54,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-09 06:01:54,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:54,109 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:01:54,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-09 06:01:54,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:01:54,310 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:01:54,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:54,311 INFO L85 PathProgramCache]: Analyzing trace with hash 970808848, now seen corresponding path program 1 times [2024-11-09 06:01:54,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:01:54,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579259068] [2024-11-09 06:01:54,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:54,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:01:54,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:01:54,322 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:01:54,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 06:02:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:04,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 2652 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:02:04,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:05,424 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 06:02:05,424 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:02:05,425 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:02:05,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579259068] [2024-11-09 06:02:05,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579259068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:02:05,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:02:05,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:02:05,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441062688] [2024-11-09 06:02:05,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:02:05,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:02:05,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:02:05,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:02:05,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:02:05,429 INFO L87 Difference]: Start difference. First operand 224 states and 335 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:02:06,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:02:06,386 INFO L93 Difference]: Finished difference Result 449 states and 674 transitions. [2024-11-09 06:02:06,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:02:06,388 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 124 [2024-11-09 06:02:06,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:02:06,391 INFO L225 Difference]: With dead ends: 449 [2024-11-09 06:02:06,391 INFO L226 Difference]: Without dead ends: 230 [2024-11-09 06:02:06,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:02:06,394 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 284 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:02:06,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1023 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:02:06,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-09 06:02:06,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 224. [2024-11-09 06:02:06,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-09 06:02:06,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 335 transitions. [2024-11-09 06:02:06,416 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 335 transitions. Word has length 124 [2024-11-09 06:02:06,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:02:06,416 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 335 transitions. [2024-11-09 06:02:06,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:02:06,417 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 335 transitions. [2024-11-09 06:02:06,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 06:02:06,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:02:06,420 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:02:06,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/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 06:02:06,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:02:06,621 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:02:06,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:02:06,622 INFO L85 PathProgramCache]: Analyzing trace with hash 919434852, now seen corresponding path program 1 times [2024-11-09 06:02:06,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:02:06,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222675689] [2024-11-09 06:02:06,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:06,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:02:06,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:02:06,630 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:02:06,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/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 06:02:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:14,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:02:14,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:16,213 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-09 06:02:16,213 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:02:16,214 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:02:16,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222675689] [2024-11-09 06:02:16,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222675689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:02:16,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:02:16,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:02:16,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682394845] [2024-11-09 06:02:16,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:02:16,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:02:16,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:02:16,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:02:16,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:02:16,217 INFO L87 Difference]: Start difference. First operand 224 states and 335 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:02:17,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:02:17,127 INFO L93 Difference]: Finished difference Result 449 states and 674 transitions. [2024-11-09 06:02:17,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:02:17,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 123 [2024-11-09 06:02:17,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:02:17,132 INFO L225 Difference]: With dead ends: 449 [2024-11-09 06:02:17,132 INFO L226 Difference]: Without dead ends: 230 [2024-11-09 06:02:17,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:02:17,135 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 532 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:02:17,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 950 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:02:17,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-09 06:02:17,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 224. [2024-11-09 06:02:17,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-09 06:02:17,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 335 transitions. [2024-11-09 06:02:17,171 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 335 transitions. Word has length 123 [2024-11-09 06:02:17,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:02:17,172 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 335 transitions. [2024-11-09 06:02:17,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:02:17,173 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 335 transitions. [2024-11-09 06:02:17,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-09 06:02:17,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:02:17,178 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:02:17,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/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 06:02:17,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:02:17,380 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:02:17,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:02:17,381 INFO L85 PathProgramCache]: Analyzing trace with hash -983398960, now seen corresponding path program 1 times [2024-11-09 06:02:17,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:02:17,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272404229] [2024-11-09 06:02:17,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:17,383 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:02:17,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:02:17,385 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:02:17,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/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 06:02:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:26,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 2660 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:02:26,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:27,927 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-09 06:02:27,927 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:02:27,927 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:02:27,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272404229] [2024-11-09 06:02:27,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272404229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:02:27,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:02:27,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:02:27,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084402738] [2024-11-09 06:02:27,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:02:27,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:02:27,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:02:27,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:02:27,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:02:27,930 INFO L87 Difference]: Start difference. First operand 224 states and 335 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:02:28,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:02:28,690 INFO L93 Difference]: Finished difference Result 229 states and 339 transitions. [2024-11-09 06:02:28,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:02:28,691 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 132 [2024-11-09 06:02:28,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:02:28,695 INFO L225 Difference]: With dead ends: 229 [2024-11-09 06:02:28,695 INFO L226 Difference]: Without dead ends: 224 [2024-11-09 06:02:28,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:02:28,696 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 460 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:02:28,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1026 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:02:28,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-09 06:02:28,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2024-11-09 06:02:28,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (14), 14 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-09 06:02:28,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 334 transitions. [2024-11-09 06:02:28,723 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 334 transitions. Word has length 132 [2024-11-09 06:02:28,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:02:28,724 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 334 transitions. [2024-11-09 06:02:28,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:02:28,724 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 334 transitions. [2024-11-09 06:02:28,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-09 06:02:28,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:02:28,727 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:02:28,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-09 06:02:28,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:02:28,928 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:02:28,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:02:28,929 INFO L85 PathProgramCache]: Analyzing trace with hash -791229985, now seen corresponding path program 1 times [2024-11-09 06:02:28,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:02:28,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637757319] [2024-11-09 06:02:28,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:28,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:02:28,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:02:28,935 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:02:28,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-09 06:02:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:38,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 2654 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:02:38,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:40,377 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-09 06:02:40,377 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:02:40,377 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:02:40,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637757319] [2024-11-09 06:02:40,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637757319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:02:40,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:02:40,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:02:40,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850757656] [2024-11-09 06:02:40,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:02:40,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:02:40,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:02:40,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:02:40,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:02:40,380 INFO L87 Difference]: Start difference. First operand 224 states and 334 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:02:41,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:02:41,283 INFO L93 Difference]: Finished difference Result 235 states and 345 transitions. [2024-11-09 06:02:41,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:02:41,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 126 [2024-11-09 06:02:41,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:02:41,287 INFO L225 Difference]: With dead ends: 235 [2024-11-09 06:02:41,288 INFO L226 Difference]: Without dead ends: 220 [2024-11-09 06:02:41,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:02:41,292 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 453 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:02:41,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1020 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:02:41,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-09 06:02:41,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2024-11-09 06:02:41,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 200 states have (on average 1.505) internal successors, (301), 200 states have internal predecessors, (301), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (14), 14 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-09 06:02:41,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 327 transitions. [2024-11-09 06:02:41,323 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 327 transitions. Word has length 126 [2024-11-09 06:02:41,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:02:41,325 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 327 transitions. [2024-11-09 06:02:41,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:02:41,326 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 327 transitions. [2024-11-09 06:02:41,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 06:02:41,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:02:41,330 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:02:41,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-09 06:02:41,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:02:41,531 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:02:41,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:02:41,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1059552859, now seen corresponding path program 1 times [2024-11-09 06:02:41,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:02:41,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1443919903] [2024-11-09 06:02:41,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:41,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:02:41,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:02:41,535 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:02:41,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/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 06:02:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:50,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 2655 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:02:50,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-09 06:02:52,227 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:02:52,227 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:02:52,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1443919903] [2024-11-09 06:02:52,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1443919903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:02:52,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:02:52,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:02:52,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34623606] [2024-11-09 06:02:52,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:02:52,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:02:52,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:02:52,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:02:52,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:02:52,230 INFO L87 Difference]: Start difference. First operand 220 states and 327 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:02:53,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:02:53,047 INFO L93 Difference]: Finished difference Result 231 states and 338 transitions. [2024-11-09 06:02:53,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:02:53,048 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 127 [2024-11-09 06:02:53,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:02:53,050 INFO L225 Difference]: With dead ends: 231 [2024-11-09 06:02:53,050 INFO L226 Difference]: Without dead ends: 216 [2024-11-09 06:02:53,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:02:53,051 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 450 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:02:53,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 993 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:02:53,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-09 06:02:53,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-11-09 06:02:53,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 196 states have (on average 1.5) internal successors, (294), 196 states have internal predecessors, (294), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (14), 14 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-09 06:02:53,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 320 transitions. [2024-11-09 06:02:53,071 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 320 transitions. Word has length 127 [2024-11-09 06:02:53,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:02:53,072 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 320 transitions. [2024-11-09 06:02:53,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:02:53,072 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 320 transitions. [2024-11-09 06:02:53,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 06:02:53,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:02:53,075 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:02:53,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-11-09 06:02:53,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:02:53,276 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:02:53,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:02:53,276 INFO L85 PathProgramCache]: Analyzing trace with hash -19525159, now seen corresponding path program 1 times [2024-11-09 06:02:53,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:02:53,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943818722] [2024-11-09 06:02:53,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:53,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:02:53,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:02:53,281 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:02:53,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-09 06:03:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:03:03,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 2657 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:03:03,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:03:04,769 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-09 06:03:04,770 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:03:04,770 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:03:04,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943818722] [2024-11-09 06:03:04,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943818722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:03:04,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:03:04,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:03:04,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90691892] [2024-11-09 06:03:04,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:03:04,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:03:04,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:03:04,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:03:04,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:03:04,772 INFO L87 Difference]: Start difference. First operand 216 states and 320 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:03:05,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:03:05,484 INFO L93 Difference]: Finished difference Result 227 states and 331 transitions. [2024-11-09 06:03:05,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:03:05,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 129 [2024-11-09 06:03:05,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:03:05,488 INFO L225 Difference]: With dead ends: 227 [2024-11-09 06:03:05,488 INFO L226 Difference]: Without dead ends: 212 [2024-11-09 06:03:05,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:03:05,489 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 263 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:03:05,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 966 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:03:05,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-09 06:03:05,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2024-11-09 06:03:05,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 192 states have (on average 1.4947916666666667) internal successors, (287), 192 states have internal predecessors, (287), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (14), 14 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-09 06:03:05,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 313 transitions. [2024-11-09 06:03:05,512 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 313 transitions. Word has length 129 [2024-11-09 06:03:05,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:03:05,512 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 313 transitions. [2024-11-09 06:03:05,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:03:05,513 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 313 transitions. [2024-11-09 06:03:05,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 06:03:05,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:03:05,516 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:03:05,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-09 06:03:05,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:03:05,717 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:03:05,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:03:05,717 INFO L85 PathProgramCache]: Analyzing trace with hash -142996361, now seen corresponding path program 1 times [2024-11-09 06:03:05,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:03:05,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362255510] [2024-11-09 06:03:05,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:03:05,721 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:03:05,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:03:05,722 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:03:05,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-09 06:03:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:03:15,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 2658 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:03:15,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:03:17,525 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-09 06:03:17,525 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:03:17,525 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:03:17,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362255510] [2024-11-09 06:03:17,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362255510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:03:17,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:03:17,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:03:17,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986210931] [2024-11-09 06:03:17,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:03:17,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:03:17,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:03:17,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:03:17,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:03:17,528 INFO L87 Difference]: Start difference. First operand 212 states and 313 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:03:18,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:03:18,277 INFO L93 Difference]: Finished difference Result 223 states and 324 transitions. [2024-11-09 06:03:18,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:03:18,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 130 [2024-11-09 06:03:18,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:03:18,281 INFO L225 Difference]: With dead ends: 223 [2024-11-09 06:03:18,282 INFO L226 Difference]: Without dead ends: 208 [2024-11-09 06:03:18,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:03:18,283 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 436 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:03:18,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 939 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:03:18,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-09 06:03:18,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-11-09 06:03:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 188 states have (on average 1.4893617021276595) internal successors, (280), 188 states have internal predecessors, (280), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (14), 14 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-09 06:03:18,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 306 transitions. [2024-11-09 06:03:18,308 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 306 transitions. Word has length 130 [2024-11-09 06:03:18,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:03:18,309 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 306 transitions. [2024-11-09 06:03:18,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:03:18,310 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 306 transitions. [2024-11-09 06:03:18,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-09 06:03:18,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:03:18,312 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:03:18,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-09 06:03:18,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:03:18,514 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:03:18,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:03:18,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1249828469, now seen corresponding path program 1 times [2024-11-09 06:03:18,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:03:18,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551823057] [2024-11-09 06:03:18,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:03:18,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:03:18,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:03:18,522 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:03:18,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feff5d24-24f0-4c74-9098-a65e66730892/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-09 06:05:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:05:52,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 2657 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-09 06:05:52,255 INFO L278 TraceCheckSpWp]: Computing forward predicates...