./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb5ad63279572b10ccf828ab50fb4850c30a9bc769c3e514e6f9dd22eeb86526 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:13:36,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:13:36,334 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:13:36,345 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:13:36,345 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:13:36,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:13:36,377 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:13:36,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:13:36,378 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:13:36,378 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:13:36,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:13:36,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:13:36,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:13:36,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:13:36,381 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:13:36,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:13:36,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:13:36,381 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:13:36,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:13:36,382 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:13:36,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:13:36,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:13:36,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:13:36,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:13:36,383 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:13:36,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:13:36,383 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:13:36,383 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:13:36,383 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:13:36,383 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:13:36,383 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:13:36,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:13:36,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:36,385 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:13:36,385 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:13:36,385 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:13:36,385 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:13:36,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:36,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:13:36,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:13:36,386 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:13:36,386 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:13:36,386 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:13:36,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:13:36,386 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:13:36,386 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:13:36,386 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:13:36,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:13:36,386 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB 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 -> Automizer 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 -> bb5ad63279572b10ccf828ab50fb4850c30a9bc769c3e514e6f9dd22eeb86526 [2024-11-28 02:13:36,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:13:36,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:13:36,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:13:36,697 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:13:36,697 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:13:36,699 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i [2024-11-28 02:13:39,607 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/data/5fd20865c/a636aabdd3fe44119ca822d7f806b054/FLAGc4583389c [2024-11-28 02:13:39,886 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:13:39,887 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i [2024-11-28 02:13:39,906 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/data/5fd20865c/a636aabdd3fe44119ca822d7f806b054/FLAGc4583389c [2024-11-28 02:13:39,950 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/data/5fd20865c/a636aabdd3fe44119ca822d7f806b054 [2024-11-28 02:13:39,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:13:39,957 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:13:39,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:13:39,958 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:13:39,963 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:13:39,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:13:39" (1/1) ... [2024-11-28 02:13:39,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fd0c8b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:39, skipping insertion in model container [2024-11-28 02:13:39,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:13:39" (1/1) ... [2024-11-28 02:13:39,994 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:13:40,143 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_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i[948,961] [2024-11-28 02:13:40,155 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: sqrt at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3128) 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:1602) 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:783) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1507) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1158) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1141) 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:393) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1629) 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:3507) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2500) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:641) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-28 02:13:40,162 INFO L158 Benchmark]: Toolchain (without parser) took 204.62ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 109.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:13:40,162 INFO L158 Benchmark]: CDTParser took 0.66ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:13:40,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.27ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 109.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:13:40,164 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.27ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 109.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. 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: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb5ad63279572b10ccf828ab50fb4850c30a9bc769c3e514e6f9dd22eeb86526 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:13:42,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:13:42,812 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 02:13:42,818 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:13:42,818 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:13:42,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:13:42,842 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:13:42,843 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:13:42,843 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:13:42,843 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:13:42,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:13:42,843 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:13:42,844 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:13:42,844 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:13:42,844 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:13:42,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:13:42,844 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:13:42,844 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:13:42,844 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:13:42,845 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:13:42,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:13:42,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:13:42,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:13:42,845 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:13:42,845 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:13:42,845 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:13:42,845 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:13:42,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:13:42,845 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:13:42,845 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:13:42,846 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:13:42,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:13:42,846 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:13:42,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:13:42,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:42,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:13:42,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:13:42,846 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:13:42,847 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:13:42,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:42,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:13:42,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:13:42,847 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:13:42,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:13:42,848 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:13:42,848 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:13:42,848 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:13:42,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:13:42,848 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:13:42,848 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:13:42,848 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB 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 -> Automizer 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 -> bb5ad63279572b10ccf828ab50fb4850c30a9bc769c3e514e6f9dd22eeb86526 [2024-11-28 02:13:43,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:13:43,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:13:43,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:13:43,145 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:13:43,145 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:13:43,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i [2024-11-28 02:13:46,145 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/data/c5c1bf40b/c10d19233ec944b48e7c095a3e53e6bb/FLAGbc592f738 [2024-11-28 02:13:46,354 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:13:46,355 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i [2024-11-28 02:13:46,365 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/data/c5c1bf40b/c10d19233ec944b48e7c095a3e53e6bb/FLAGbc592f738 [2024-11-28 02:13:46,380 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/data/c5c1bf40b/c10d19233ec944b48e7c095a3e53e6bb [2024-11-28 02:13:46,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:13:46,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:13:46,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:13:46,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:13:46,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:13:46,390 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:13:46" (1/1) ... [2024-11-28 02:13:46,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3db31080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:46, skipping insertion in model container [2024-11-28 02:13:46,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:13:46" (1/1) ... [2024-11-28 02:13:46,409 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:13:46,600 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_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i[948,961] [2024-11-28 02:13:46,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:13:46,680 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:13:46,693 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_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i[948,961] [2024-11-28 02:13:46,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:13:46,727 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:13:46,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:46 WrapperNode [2024-11-28 02:13:46,728 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:13:46,729 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:13:46,729 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:13:46,730 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:13:46,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:46" (1/1) ... [2024-11-28 02:13:46,746 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:46" (1/1) ... [2024-11-28 02:13:46,764 INFO L138 Inliner]: procedures = 18, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2024-11-28 02:13:46,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:13:46,765 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:13:46,765 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:13:46,765 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:13:46,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:46" (1/1) ... [2024-11-28 02:13:46,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:46" (1/1) ... [2024-11-28 02:13:46,777 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:46" (1/1) ... [2024-11-28 02:13:46,801 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-28 02:13:46,802 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:46" (1/1) ... [2024-11-28 02:13:46,802 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:46" (1/1) ... [2024-11-28 02:13:46,815 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:46" (1/1) ... [2024-11-28 02:13:46,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:46" (1/1) ... [2024-11-28 02:13:46,822 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:46" (1/1) ... [2024-11-28 02:13:46,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:46" (1/1) ... [2024-11-28 02:13:46,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:46" (1/1) ... [2024-11-28 02:13:46,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:13:46,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:13:46,839 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:13:46,839 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:13:46,841 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:46" (1/1) ... [2024-11-28 02:13:46,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:46,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:46,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:46,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:13:46,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:13:46,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:13:46,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:13:46,908 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:13:46,908 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:13:46,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:13:46,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:13:46,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:13:46,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:13:46,973 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:13:46,975 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:13:51,856 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-28 02:13:51,856 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:13:51,868 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:13:51,868 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:13:51,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:51 BoogieIcfgContainer [2024-11-28 02:13:51,869 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:13:51,872 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:13:51,872 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:13:51,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:13:51,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:13:46" (1/3) ... [2024-11-28 02:13:51,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce47733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:13:51, skipping insertion in model container [2024-11-28 02:13:51,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:46" (2/3) ... [2024-11-28 02:13:51,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce47733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:13:51, skipping insertion in model container [2024-11-28 02:13:51,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:51" (3/3) ... [2024-11-28 02:13:51,880 INFO L128 eAbstractionObserver]: Analyzing ICFG knuth_valuebound50.i [2024-11-28 02:13:51,898 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:13:51,899 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG knuth_valuebound50.i that has 3 procedures, 30 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:13:51,953 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:13:51,965 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=PETRI_NET, 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;@b800df3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:13:51,966 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:13:51,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 02:13:51,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 02:13:51,977 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:51,977 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:51,978 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:51,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:51,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1601729742, now seen corresponding path program 1 times [2024-11-28 02:13:51,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:13:51,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304692882] [2024-11-28 02:13:51,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:51,995 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 [2024-11-28 02:13:51,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:13:51,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 02:13:52,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:13:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:52,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:13:52,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:52,358 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 02:13:52,358 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:13:52,359 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:13:52,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304692882] [2024-11-28 02:13:52,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1304692882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:52,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:52,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:13:52,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636025407] [2024-11-28 02:13:52,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:52,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:13:52,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:13:52,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:13:52,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:13:52,387 INFO L87 Difference]: Start difference. First operand has 30 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:13:52,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:52,410 INFO L93 Difference]: Finished difference Result 57 states and 90 transitions. [2024-11-28 02:13:52,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:13:52,412 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2024-11-28 02:13:52,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:52,419 INFO L225 Difference]: With dead ends: 57 [2024-11-28 02:13:52,419 INFO L226 Difference]: Without dead ends: 26 [2024-11-28 02:13:52,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:13:52,426 INFO L435 NwaCegarLoop]: 39 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, 39 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 [2024-11-28 02:13:52,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:13:52,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-28 02:13:52,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-28 02:13:52,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 02:13:52,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2024-11-28 02:13:52,460 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 35 transitions. Word has length 28 [2024-11-28 02:13:52,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:52,461 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 35 transitions. [2024-11-28 02:13:52,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:13:52,461 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-11-28 02:13:52,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 02:13:52,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:52,463 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:52,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:13:52,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:13:52,664 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:52,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:52,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1922581110, now seen corresponding path program 1 times [2024-11-28 02:13:52,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:13:52,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975348244] [2024-11-28 02:13:52,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:52,665 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 [2024-11-28 02:13:52,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:13:52,668 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 02:13:52,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:14:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:01,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 02:14:01,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:14:17,506 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:14:33,937 WARN L286 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:14:50,494 WARN L286 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:15:20,613 WARN L286 SmtUtils]: Spent 28.43s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:15:32,824 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:15:45,060 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:16:19,677 WARN L286 SmtUtils]: Spent 28.44s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:16:31,827 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:16:44,094 WARN L286 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:16:48,117 WARN L851 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ BitVec 32))) (and (bvule |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ bv50 32)) (not (= (let ((.cse1 (bvadd |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ bv4294967294 32)))) (let ((.cse0 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (.cse3 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse1))) (bvadd (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse1) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| .cse2)) (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvneg (bvmul |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (bvmul (_ bv4 32) .cse0))) (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse3) (bvmul (_ bv8 32) .cse2)) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4|))) (bvule |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ bv50 32)))) is different from false [2024-11-28 02:16:52,132 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ BitVec 32))) (and (bvule |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ bv50 32)) (not (= (let ((.cse1 (bvadd |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ bv4294967294 32)))) (let ((.cse0 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (.cse3 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse1))) (bvadd (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse1) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| .cse2)) (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvneg (bvmul |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (bvmul (_ bv4 32) .cse0))) (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse3) (bvmul (_ bv8 32) .cse2)) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4|))) (bvule |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ bv50 32)))) is different from true [2024-11-28 02:16:52,132 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:16:52,133 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:17:17,559 WARN L873 $PredicateComparison]: unable to prove that (= (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|) (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse0 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse1)) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse3)) (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse0))) (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse1) (bvmul (_ bv8 32) .cse3)) |c_ULTIMATE.start_main_~a~0#1|)))))) is different from true [2024-11-28 02:17:25,914 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:17:34,600 WARN L873 $PredicateComparison]: unable to prove that (or (= (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|) (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse0 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse1)) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse3)) (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse0))) (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse1) (bvmul (_ bv8 32) .cse3)) |c_ULTIMATE.start_main_~a~0#1|)))))) (not (bvugt |c_ULTIMATE.start_main_~a~0#1| (_ bv2 32)))) is different from true [2024-11-28 02:17:46,758 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:17:54,978 WARN L873 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv2 32)) (= (let ((.cse2 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv4294967294 32)))) (let ((.cse1 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse2)) (.cse3 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (.cse0 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)))) (bvadd (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (bvadd (bvmul (_ bv8 32) .cse0) (bvmul (_ bv8 32) .cse1)))) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| .cse1)) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse2))) (bvneg (bvmul (bvmul (_ bv4 32) .cse3) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv8 32) .cse3) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| .cse0))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5|)))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2024-11-28 02:18:07,120 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:18:23,453 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:18:31,738 WARN L873 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv2 32)) (= (let ((.cse2 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv4294967294 32)))) (let ((.cse1 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse2)) (.cse3 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (.cse0 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)))) (bvadd (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (bvadd (bvmul (_ bv8 32) .cse0) (bvmul (_ bv8 32) .cse1)))) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| .cse1)) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse2))) (bvneg (bvmul (bvmul (_ bv4 32) .cse3) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv8 32) .cse3) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| .cse0))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5|)))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2024-11-28 02:18:39,934 WARN L286 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:18:52,902 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:19:00,992 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:19:09,855 WARN L873 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~a~0#1| (_ BitVec 32))) (or (not (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv2 32))) (not (bvule |ULTIMATE.start_main_~a~0#1| (_ bv50 32))) (= (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|) (let ((.cse3 (bvadd |ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse0 (bvurem |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|)) (.cse2 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse1 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse3))) (bvadd (bvneg (bvmul |ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse0))) (bvmul (_ bv4 32) (bvmul |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1| .cse1)) (bvmul (_ bv4 32) (bvmul .cse2 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul |ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse3))) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul (_ bv8 32) .cse1)) |ULTIMATE.start_main_~a~0#1|)))))))) is different from true [2024-11-28 02:19:09,856 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:19:09,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [975348244] [2024-11-28 02:19:09,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [975348244] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:19:09,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1261873358] [2024-11-28 02:19:09,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:19:09,857 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 02:19:09,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 02:19:09,868 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 02:19:09,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-28 02:19:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:19:34,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 02:19:34,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:19:52,344 WARN L286 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:20:12,954 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:20:21,069 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:20:36,142 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:20:48,386 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:21:00,582 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:21:12,825 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:21:12,826 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:21:12,826 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:21:26,085 WARN L286 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:21:46,732 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:21:50,811 WARN L873 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ BitVec 32))) (or (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11|) (let ((.cse3 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|))) (.cse0 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| .cse3)) (.cse2 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|))) (bvadd (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (bvadd (bvmul (_ bv8 32) .cse0) (bvmul (_ bv8 32) .cse1)))) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| .cse1)) (bvmul (_ bv8 32) .cse2) (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| .cse0) (_ bv4 32)) (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (bvmul (_ bv4 32) .cse2))) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| .cse3))))))) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ bv2 32))))) is different from true [2024-11-28 02:22:07,095 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:22:23,460 WARN L286 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:22:27,561 WARN L873 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ BitVec 32))) (or (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11|) (let ((.cse3 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|))) (.cse0 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| .cse3)) (.cse2 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|))) (bvadd (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (bvadd (bvmul (_ bv8 32) .cse0) (bvmul (_ bv8 32) .cse1)))) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| .cse1)) (bvmul (_ bv8 32) .cse2) (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| .cse0) (_ bv4 32)) (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (bvmul (_ bv4 32) .cse2))) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| .cse3))))))) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ bv2 32))))) is different from true [2024-11-28 02:22:35,715 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:22:48,438 WARN L286 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:22:56,533 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:23:00,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1261873358] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:23:00,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:23:00,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2024-11-28 02:23:00,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169481316] [2024-11-28 02:23:00,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:23:00,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:23:00,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:23:00,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:23:00,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=132, Unknown=13, NotChecked=232, Total=420 [2024-11-28 02:23:00,896 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. Second operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:23:07,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:23:11,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:23:15,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:23:19,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:23:21,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:24:39,890 WARN L286 SmtUtils]: Spent 57.37s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:24:44,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:24:48,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:24:52,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:24:56,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:25:00,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:25:04,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:25:08,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:25:12,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:25:16,745 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (exists ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ BitVec 32))) (and (bvule |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ bv50 32)) (not (= (let ((.cse2 (bvadd |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ bv4294967294 32)))) (let ((.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (.cse4 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))) (.cse3 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse2))) (bvadd (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse2) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| .cse3)) (bvmul (_ bv4 32) (bvmul .cse4 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvneg (bvmul |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (bvmul (_ bv4 32) .cse1))) (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse4) (bvmul (_ bv8 32) .cse3)) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4|))) (bvule |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ bv50 32)))))) (and .cse0 (or (and .cse0 (= (_ bv0 32) |c___VERIFIER_assert_#in~cond|)) (= (_ bv1 32) |c___VERIFIER_assert_#in~cond|)))) is different from false [2024-11-28 02:25:20,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:25:25,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:25:29,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:25:34,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:25:35,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:25:40,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:25:43,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:25:47,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:25:52,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:25:56,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:25:56,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:56,704 INFO L93 Difference]: Finished difference Result 42 states and 57 transitions. [2024-11-28 02:25:56,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:25:56,714 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2024-11-28 02:25:56,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:56,716 INFO L225 Difference]: With dead ends: 42 [2024-11-28 02:25:56,716 INFO L226 Difference]: Without dead ends: 40 [2024-11-28 02:25:56,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 205.4s TimeCoverageRelationStatistics Valid=59, Invalid=199, Unknown=18, NotChecked=324, Total=600 [2024-11-28 02:25:56,721 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 38 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 17 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 92.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 93.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:56,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 123 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 127 Invalid, 20 Unknown, 55 Unchecked, 93.3s Time] [2024-11-28 02:25:56,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-28 02:25:56,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 31. [2024-11-28 02:25:56,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 02:25:56,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2024-11-28 02:25:56,739 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 40 transitions. Word has length 28 [2024-11-28 02:25:56,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:56,739 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 40 transitions. [2024-11-28 02:25:56,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:25:56,740 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2024-11-28 02:25:56,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-28 02:25:56,741 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:56,741 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:25:56,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-28 02:25:56,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:25:57,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:25:57,142 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:57,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:57,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1070329936, now seen corresponding path program 1 times [2024-11-28 02:25:57,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:25:57,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840863023] [2024-11-28 02:25:57,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:57,143 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 [2024-11-28 02:25:57,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:25:57,147 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 02:25:57,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:25:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:57,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:25:57,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:25:57,995 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:25:57,995 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:25:57,995 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:25:57,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840863023] [2024-11-28 02:25:57,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840863023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:57,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:57,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:25:57,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211280761] [2024-11-28 02:25:57,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:57,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:25:57,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:25:57,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:25:57,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:25:57,998 INFO L87 Difference]: Start difference. First operand 31 states and 40 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:25:59,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:59,086 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2024-11-28 02:25:59,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:25:59,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2024-11-28 02:25:59,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:59,092 INFO L225 Difference]: With dead ends: 44 [2024-11-28 02:25:59,092 INFO L226 Difference]: Without dead ends: 42 [2024-11-28 02:25:59,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:25:59,094 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 6 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:59,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 126 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:25:59,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-28 02:25:59,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2024-11-28 02:25:59,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 22 states have internal predecessors, (25), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:25:59,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2024-11-28 02:25:59,105 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 33 [2024-11-28 02:25:59,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:59,106 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2024-11-28 02:25:59,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:25:59,106 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2024-11-28 02:25:59,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 02:25:59,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:59,108 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:25:59,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:25:59,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:25:59,308 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:59,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:59,309 INFO L85 PathProgramCache]: Analyzing trace with hash 271819018, now seen corresponding path program 1 times [2024-11-28 02:25:59,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:25:59,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655724782] [2024-11-28 02:25:59,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:59,309 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 [2024-11-28 02:25:59,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:25:59,313 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 02:25:59,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90f45a6-d7bb-4469-9cdc-dde0f1d2dded/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:26:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:26:13,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 02:26:13,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:26:37,069 WARN L286 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:26:56,648 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:27:04,763 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:27:30,431 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:27:31,683 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 02:27:31,683 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:28:13,512 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:28:22,403 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse8 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse7 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse8)) (.cse6 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse5 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (let ((.cse1 (bvmul (_ bv8 32) .cse5)) (.cse2 (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse6))) (.cse3 (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse8)))) (.cse0 (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|)) (.cse4 (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse7)))) (or (not (= .cse0 (bvadd .cse1 .cse2 .cse3 .cse4 (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse5))) (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse6) (bvmul (_ bv8 32) .cse7)) |c_ULTIMATE.start_main_~a~0#1|))))) (= (_ bv0 32) (bvadd (bvneg (bvmul (bvmul (_ bv4 32) |c_ULTIMATE.start_main_~a~0#1|) .cse5)) .cse1 .cse2 .cse3 (bvneg (bvmul (bvadd (bvmul (_ bv4 32) .cse7) (bvmul (_ bv4 32) .cse6)) (bvmul (_ bv2 32) |c_ULTIMATE.start_main_~a~0#1|))) (bvneg .cse0) .cse4)))))) is different from true [2024-11-28 02:28:30,827 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:28:43,156 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:28:47,511 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse8 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse7 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse8)) (.cse6 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse5 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (let ((.cse1 (bvmul (_ bv8 32) .cse5)) (.cse2 (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse6))) (.cse3 (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse8)))) (.cse0 (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|)) (.cse4 (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse7)))) (or (not (= .cse0 (bvadd .cse1 .cse2 .cse3 .cse4 (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse5))) (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse6) (bvmul (_ bv8 32) .cse7)) |c_ULTIMATE.start_main_~a~0#1|))))) (= (_ bv0 32) (bvadd (bvneg (bvmul (bvmul (_ bv4 32) |c_ULTIMATE.start_main_~a~0#1|) .cse5)) .cse1 .cse2 .cse3 (bvneg (bvmul (bvadd (bvmul (_ bv4 32) .cse7) (bvmul (_ bv4 32) .cse6)) (bvmul (_ bv2 32) |c_ULTIMATE.start_main_~a~0#1|))) (bvneg .cse0) .cse4)) (not (bvugt |c_ULTIMATE.start_main_~a~0#1| (_ bv2 32))))))) is different from true [2024-11-28 02:29:03,842 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)