./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX --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 1ef18cb99015e3862bc412bba0236f0b81e1a322b85b5352db3e49d7e6440079 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:49:07,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:49:07,346 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:49:07,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:49:07,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:49:07,381 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:49:07,381 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:49:07,382 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:49:07,384 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:49:07,386 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:49:07,386 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:49:07,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:49:07,387 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:49:07,388 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:49:07,388 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:49:07,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:49:07,389 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:49:07,393 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:49:07,393 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:49:07,394 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:49:07,394 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:49:07,394 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:49:07,395 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:49:07,395 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:49:07,395 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:49:07,395 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:49:07,396 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:49:07,396 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:49:07,396 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:49:07,396 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:49:07,397 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:49:07,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:49:07,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:49:07,398 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:49:07,398 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:49:07,398 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:49:07,398 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:49:07,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:49:07,399 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:49:07,399 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:49:07,400 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:49:07,400 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:49:07,400 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ef18cb99015e3862bc412bba0236f0b81e1a322b85b5352db3e49d7e6440079 [2024-11-08 16:49:07,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:49:07,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:49:07,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:49:07,700 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:49:07,703 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:49:07,705 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-08 16:49:09,696 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:49:10,107 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:49:10,108 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i [2024-11-08 16:49:10,135 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/data/1a3c4a051/e7687933fb3747ecaeff2406132e3d15/FLAG7a1e6bfea [2024-11-08 16:49:10,277 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/data/1a3c4a051/e7687933fb3747ecaeff2406132e3d15 [2024-11-08 16:49:10,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:49:10,282 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:49:10,283 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:49:10,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:49:10,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:49:10,290 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:49:10" (1/1) ... [2024-11-08 16:49:10,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51767187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:49:10, skipping insertion in model container [2024-11-08 16:49:10,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:49:10" (1/1) ... [2024-11-08 16:49:10,412 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:49:11,613 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_bb761bc0-f5f1-4027-b74c-929e5dba2dda/sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i[72204,72217] [2024-11-08 16:49:12,097 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3125) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1625) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:792) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2578) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:307) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:792) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:792) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1520) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1167) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleLoopBody(CHandler.java:3634) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1577) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:227) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1167) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1652) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3539) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2522) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:642) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-08 16:49:12,109 INFO L158 Benchmark]: Toolchain (without parser) took 1823.08ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 95.2MB in the beginning and 148.9MB in the end (delta: -53.7MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2024-11-08 16:49:12,110 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:49:12,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1820.60ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 95.2MB in the beginning and 148.9MB in the end (delta: -53.7MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2024-11-08 16:49:12,112 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1820.60ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 95.2MB in the beginning and 148.9MB in the end (delta: -53.7MB). Peak memory consumption was 58.4MB. 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: fabs de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:627) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX --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 1ef18cb99015e3862bc412bba0236f0b81e1a322b85b5352db3e49d7e6440079 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:49:14,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:49:14,512 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 16:49:14,518 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:49:14,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:49:14,552 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:49:14,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:49:14,553 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:49:14,554 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:49:14,554 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:49:14,554 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:49:14,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:49:14,556 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:49:14,557 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:49:14,558 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:49:14,558 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:49:14,558 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:49:14,559 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:49:14,559 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:49:14,560 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:49:14,564 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:49:14,565 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:49:14,566 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:49:14,566 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 16:49:14,566 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 16:49:14,566 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:49:14,567 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 16:49:14,567 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:49:14,567 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:49:14,567 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:49:14,568 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:49:14,568 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:49:14,568 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:49:14,568 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:49:14,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:49:14,569 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:49:14,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:49:14,570 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:49:14,570 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 16:49:14,570 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 16:49:14,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:49:14,572 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:49:14,572 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:49:14,572 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:49:14,572 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ef18cb99015e3862bc412bba0236f0b81e1a322b85b5352db3e49d7e6440079 [2024-11-08 16:49:14,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:49:14,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:49:14,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:49:14,987 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:49:14,987 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:49:14,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-08 16:49:17,125 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:49:17,618 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:49:17,619 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i [2024-11-08 16:49:17,661 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/data/6f7e57b0f/16fa98e9339240e8a65ac87d57c6cff0/FLAG40c5602ff [2024-11-08 16:49:17,681 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/data/6f7e57b0f/16fa98e9339240e8a65ac87d57c6cff0 [2024-11-08 16:49:17,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:49:17,686 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:49:17,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:49:17,690 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:49:17,696 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:49:17,697 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:49:17" (1/1) ... [2024-11-08 16:49:17,698 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@733391b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:49:17, skipping insertion in model container [2024-11-08 16:49:17,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:49:17" (1/1) ... [2024-11-08 16:49:17,784 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:49:18,854 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_bb761bc0-f5f1-4027-b74c-929e5dba2dda/sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i[72204,72217] [2024-11-08 16:49:19,388 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:49:19,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:49:19,471 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:49:19,545 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_bb761bc0-f5f1-4027-b74c-929e5dba2dda/sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i[72204,72217] [2024-11-08 16:49:19,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:49:20,212 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:49:20,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:49:20 WrapperNode [2024-11-08 16:49:20,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:49:20,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:49:20,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:49:20,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:49:20,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:49:20" (1/1) ... [2024-11-08 16:49:20,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:49:20" (1/1) ... [2024-11-08 16:49:20,488 INFO L138 Inliner]: procedures = 780, calls = 2961, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 1144 [2024-11-08 16:49:20,488 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:49:20,489 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:49:20,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:49:20,490 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:49:20,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:49:20" (1/1) ... [2024-11-08 16:49:20,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:49:20" (1/1) ... [2024-11-08 16:49:20,536 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:49:20" (1/1) ... [2024-11-08 16:49:20,611 INFO L175 MemorySlicer]: Split 841 memory accesses to 12 slices as follows [2, 7, 2, 11, 10, 515, 68, 9, 12, 115, 79, 11]. 61 percent of accesses are in the largest equivalence class. The 243 initializations are split as follows [2, 7, 2, 8, 8, 0, 64, 8, 8, 80, 48, 8]. The 548 writes are split as follows [0, 0, 0, 0, 0, 514, 3, 0, 0, 17, 14, 0]. [2024-11-08 16:49:20,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:49:20" (1/1) ... [2024-11-08 16:49:20,615 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:49:20" (1/1) ... [2024-11-08 16:49:20,730 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:49:20" (1/1) ... [2024-11-08 16:49:20,737 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:49:20" (1/1) ... [2024-11-08 16:49:20,746 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:49:20" (1/1) ... [2024-11-08 16:49:20,753 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:49:20" (1/1) ... [2024-11-08 16:49:20,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:49:20,768 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:49:20,768 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:49:20,768 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:49:20,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:49:20" (1/1) ... [2024-11-08 16:49:20,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:49:20,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:49:20,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:49:20,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:49:20,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-08 16:49:20,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-08 16:49:20,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-08 16:49:20,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-08 16:49:20,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-08 16:49:20,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-08 16:49:20,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-08 16:49:20,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-08 16:49:20,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-08 16:49:20,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-08 16:49:20,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-08 16:49:20,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-08 16:49:20,857 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNN [2024-11-08 16:49:20,857 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNN [2024-11-08 16:49:20,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-08 16:49:20,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-08 16:49:20,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2 [2024-11-08 16:49:20,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3 [2024-11-08 16:49:20,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4 [2024-11-08 16:49:20,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5 [2024-11-08 16:49:20,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6 [2024-11-08 16:49:20,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7 [2024-11-08 16:49:20,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8 [2024-11-08 16:49:20,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9 [2024-11-08 16:49:20,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10 [2024-11-08 16:49:20,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#11 [2024-11-08 16:49:20,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:49:20,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:49:20,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:49:20,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-08 16:49:20,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-08 16:49:20,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-08 16:49:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-08 16:49:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-08 16:49:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-08 16:49:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-08 16:49:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-08 16:49:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-08 16:49:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-08 16:49:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-11-08 16:49:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-11-08 16:49:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-08 16:49:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-08 16:49:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-08 16:49:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-08 16:49:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-08 16:49:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-08 16:49:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-08 16:49:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-08 16:49:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-08 16:49:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-08 16:49:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-11-08 16:49:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-11-08 16:49:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:49:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 16:49:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 16:49:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 16:49:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 16:49:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 16:49:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 16:49:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-08 16:49:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-08 16:49:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-08 16:49:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-08 16:49:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-08 16:49:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-08 16:49:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_affine_matmul [2024-11-08 16:49:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_affine_matmul [2024-11-08 16:49:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-08 16:49:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-08 16:49:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:49:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 16:49:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 16:49:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 16:49:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 16:49:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-08 16:49:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-08 16:49:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-08 16:49:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-08 16:49:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-08 16:49:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-08 16:49:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-08 16:49:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-08 16:49:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-08 16:49:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-08 16:49:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-08 16:49:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-08 16:49:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-08 16:49:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-08 16:49:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-08 16:49:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-08 16:49:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-11-08 16:49:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-11-08 16:49:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2024-11-08 16:49:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2024-11-08 16:49:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-08 16:49:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-08 16:49:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-08 16:49:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-08 16:49:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-08 16:49:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-08 16:49:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-08 16:49:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-11-08 16:49:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-11-08 16:49:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-11-08 16:49:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-11-08 16:49:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2024-11-08 16:49:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNNcell [2024-11-08 16:49:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNNcell [2024-11-08 16:49:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 16:49:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 16:49:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 16:49:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-08 16:49:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-08 16:49:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-08 16:49:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-08 16:49:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-08 16:49:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-08 16:49:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-08 16:49:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-08 16:49:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-08 16:49:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-08 16:49:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-08 16:49:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-08 16:49:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-08 16:49:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-08 16:49:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-08 16:49:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-08 16:49:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-08 16:49:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-08 16:49:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-08 16:49:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-08 16:49:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-08 16:49:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-08 16:49:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-08 16:49:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-08 16:49:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-08 16:49:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-08 16:49:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-08 16:49:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-08 16:49:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-08 16:49:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-08 16:49:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-08 16:49:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-08 16:49:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-08 16:49:21,228 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:49:21,230 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:49:39,637 INFO L? ?]: Removed 198 outVars from TransFormulas that were not future-live. [2024-11-08 16:49:39,638 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:49:39,660 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:49:39,662 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:49:39,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:49:39 BoogieIcfgContainer [2024-11-08 16:49:39,663 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:49:39,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:49:39,669 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:49:39,673 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:49:39,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:49:17" (1/3) ... [2024-11-08 16:49:39,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3042ba77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:49:39, skipping insertion in model container [2024-11-08 16:49:39,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:49:20" (2/3) ... [2024-11-08 16:49:39,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3042ba77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:49:39, skipping insertion in model container [2024-11-08 16:49:39,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:49:39" (3/3) ... [2024-11-08 16:49:39,679 INFO L112 eAbstractionObserver]: Analyzing ICFG tanh_w16_r4_case_1_safe.c-amalgamation.i [2024-11-08 16:49:39,702 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:49:39,703 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:49:39,801 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:49:39,810 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;@1d8ecd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:49:39,811 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:49:39,818 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 137 states have (on average 1.532846715328467) internal successors, (210), 138 states have internal predecessors, (210), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 16:49:39,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 16:49:39,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:49:39,831 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:49:39,832 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:49:39,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:49:39,839 INFO L85 PathProgramCache]: Analyzing trace with hash 157123891, now seen corresponding path program 1 times [2024-11-08 16:49:39,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:49:39,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671467557] [2024-11-08 16:49:39,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:49:39,879 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 [2024-11-08 16:49:39,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 16:49:39,884 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 16:49:39,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:50:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:50:22,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 5953 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 16:50:22,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:50:22,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:50:22,297 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:50:22,298 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:50:22,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671467557] [2024-11-08 16:50:22,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671467557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:50:22,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:50:22,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:50:22,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163987313] [2024-11-08 16:50:22,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:50:22,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 16:50:22,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:50:22,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 16:50:22,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:50:22,330 INFO L87 Difference]: Start difference. First operand has 151 states, 137 states have (on average 1.532846715328467) internal successors, (210), 138 states have internal predecessors, (210), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:50:22,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:50:22,365 INFO L93 Difference]: Finished difference Result 298 states and 442 transitions. [2024-11-08 16:50:22,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 16:50:22,369 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-08 16:50:22,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:50:22,380 INFO L225 Difference]: With dead ends: 298 [2024-11-08 16:50:22,380 INFO L226 Difference]: Without dead ends: 147 [2024-11-08 16:50:22,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:50:22,390 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:50:22,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:50:22,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-08 16:50:22,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-08 16:50:22,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 134 states have (on average 1.4776119402985075) internal successors, (198), 134 states have internal predecessors, (198), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 16:50:22,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 212 transitions. [2024-11-08 16:50:22,447 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 212 transitions. Word has length 35 [2024-11-08 16:50:22,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:50:22,447 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 212 transitions. [2024-11-08 16:50:22,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:50:22,448 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 212 transitions. [2024-11-08 16:50:22,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 16:50:22,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:50:22,449 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:50:22,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:50:22,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:50:22,651 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:50:22,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:50:22,653 INFO L85 PathProgramCache]: Analyzing trace with hash -433661521, now seen corresponding path program 1 times [2024-11-08 16:50:22,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:50:22,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855421279] [2024-11-08 16:50:22,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:50:22,671 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 [2024-11-08 16:50:22,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 16:50:22,674 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 16:50:22,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:51:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:51:02,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 5953 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 16:51:02,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:51:03,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:51:03,337 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:51:03,337 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:51:03,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855421279] [2024-11-08 16:51:03,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855421279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:51:03,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:51:03,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:51:03,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958534569] [2024-11-08 16:51:03,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:51:03,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:51:03,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:51:03,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:51:03,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:51:03,342 INFO L87 Difference]: Start difference. First operand 147 states and 212 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:51:03,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:51:03,564 INFO L93 Difference]: Finished difference Result 158 states and 225 transitions. [2024-11-08 16:51:03,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:51:03,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-08 16:51:03,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:51:03,568 INFO L225 Difference]: With dead ends: 158 [2024-11-08 16:51:03,568 INFO L226 Difference]: Without dead ends: 137 [2024-11-08 16:51:03,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:51:03,570 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 19 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:51:03,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 816 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:51:03,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-08 16:51:03,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-11-08 16:51:03,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 125 states have (on average 1.464) internal successors, (183), 125 states have internal predecessors, (183), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 16:51:03,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 195 transitions. [2024-11-08 16:51:03,583 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 195 transitions. Word has length 35 [2024-11-08 16:51:03,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:51:03,584 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 195 transitions. [2024-11-08 16:51:03,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:51:03,584 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 195 transitions. [2024-11-08 16:51:03,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 16:51:03,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:51:03,586 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:51:03,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:51:03,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:51:03,787 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:51:03,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:51:03,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1506559350, now seen corresponding path program 1 times [2024-11-08 16:51:03,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:51:03,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002544801] [2024-11-08 16:51:03,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:51:03,793 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 [2024-11-08 16:51:03,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 16:51:03,798 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 16:51:03,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-08 16:51:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:51:43,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 5953 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 16:51:43,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:51:46,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:51:46,299 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:51:46,299 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:51:46,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002544801] [2024-11-08 16:51:46,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002544801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:51:46,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:51:46,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:51:46,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35560926] [2024-11-08 16:51:46,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:51:46,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:51:46,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:51:46,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:51:46,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:51:46,301 INFO L87 Difference]: Start difference. First operand 137 states and 195 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:51:50,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:51:54,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 16:51:58,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 16:52:02,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 16:52:06,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:52:11,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 16:52:16,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 16:52:20,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 16:52:25,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.68s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:52:29,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:52:29,442 INFO L93 Difference]: Finished difference Result 158 states and 224 transitions. [2024-11-08 16:52:29,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:52:29,445 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-08 16:52:29,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:52:29,447 INFO L225 Difference]: With dead ends: 158 [2024-11-08 16:52:29,447 INFO L226 Difference]: Without dead ends: 146 [2024-11-08 16:52:29,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:52:29,449 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 231 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:52:29,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 849 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 9 Unknown, 0 Unchecked, 43.1s Time] [2024-11-08 16:52:29,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-08 16:52:29,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 139. [2024-11-08 16:52:29,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 127 states have (on average 1.4566929133858268) internal successors, (185), 127 states have internal predecessors, (185), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 16:52:29,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 197 transitions. [2024-11-08 16:52:29,471 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 197 transitions. Word has length 35 [2024-11-08 16:52:29,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:52:29,472 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 197 transitions. [2024-11-08 16:52:29,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:52:29,472 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 197 transitions. [2024-11-08 16:52:29,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 16:52:29,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:52:29,475 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:52:29,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-08 16:52:29,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:52:29,677 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:52:29,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:29,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1132849616, now seen corresponding path program 1 times [2024-11-08 16:52:29,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:52:29,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349864397] [2024-11-08 16:52:29,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:29,681 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 [2024-11-08 16:52:29,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 16:52:29,684 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 16:52:29,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:53:07,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:07,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 6143 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 16:53:07,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:53:25,780 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:53:25,780 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:53:42,433 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:53:42,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349864397] [2024-11-08 16:53:42,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349864397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:53:42,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855329512] [2024-11-08 16:53:42,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:42,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:53:42,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:53:42,437 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:53:42,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:54:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:18,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 6143 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 16:54:18,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:54:19,072 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 16:54:19,073 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:54:19,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855329512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:54:19,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:54:19,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2024-11-08 16:54:19,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161115003] [2024-11-08 16:54:19,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:54:19,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:54:19,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:54:19,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:54:19,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-08 16:54:19,076 INFO L87 Difference]: Start difference. First operand 139 states and 197 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-08 16:54:19,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:54:19,317 INFO L93 Difference]: Finished difference Result 258 states and 372 transitions. [2024-11-08 16:54:19,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:54:19,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 81 [2024-11-08 16:54:19,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:54:19,323 INFO L225 Difference]: With dead ends: 258 [2024-11-08 16:54:19,323 INFO L226 Difference]: Without dead ends: 147 [2024-11-08 16:54:19,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 161 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-08 16:54:19,329 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 4 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:54:19,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 390 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:54:19,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-08 16:54:19,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-08 16:54:19,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 134 states have (on average 1.4477611940298507) internal successors, (194), 134 states have internal predecessors, (194), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 16:54:19,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 208 transitions. [2024-11-08 16:54:19,351 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 208 transitions. Word has length 81 [2024-11-08 16:54:19,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:54:19,351 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 208 transitions. [2024-11-08 16:54:19,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-08 16:54:19,352 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 208 transitions. [2024-11-08 16:54:19,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 16:54:19,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:54:19,354 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:54:19,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 16:54:19,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:54:19,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:54:19,756 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:54:19,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:54:19,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1430503581, now seen corresponding path program 1 times [2024-11-08 16:54:19,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:54:19,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963274030] [2024-11-08 16:54:19,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:54:19,760 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 [2024-11-08 16:54:19,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 16:54:19,763 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 16:54:19,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-08 16:54:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:59,305 INFO L255 TraceCheckSpWp]: Trace formula consists of 6146 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 16:54:59,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:55:17,491 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:55:17,492 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:55:33,452 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:55:33,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963274030] [2024-11-08 16:55:33,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963274030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:55:33,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565265267] [2024-11-08 16:55:33,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:33,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:55:33,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:55:33,456 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:55:33,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 16:56:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:08,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 6146 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 16:56:08,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:56:21,341 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 16:56:21,342 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:56:40,199 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 16:56:40,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565265267] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 16:56:40,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 16:56:40,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25 [2024-11-08 16:56:40,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815754459] [2024-11-08 16:56:40,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:56:40,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:56:40,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:56:40,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:56:40,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-11-08 16:56:40,202 INFO L87 Difference]: Start difference. First operand 147 states and 208 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-08 16:56:48,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:56:48,148 INFO L93 Difference]: Finished difference Result 184 states and 261 transitions. [2024-11-08 16:56:48,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:56:48,151 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 83 [2024-11-08 16:56:48,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:56:48,153 INFO L225 Difference]: With dead ends: 184 [2024-11-08 16:56:48,153 INFO L226 Difference]: Without dead ends: 143 [2024-11-08 16:56:48,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 238 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 26.8s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 16:56:48,156 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 240 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:56:48,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 1041 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-08 16:56:48,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-08 16:56:48,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-11-08 16:56:48,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 130 states have (on average 1.4384615384615385) internal successors, (187), 130 states have internal predecessors, (187), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 16:56:48,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 201 transitions. [2024-11-08 16:56:48,178 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 201 transitions. Word has length 83 [2024-11-08 16:56:48,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:56:48,178 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 201 transitions. [2024-11-08 16:56:48,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-08 16:56:48,179 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 201 transitions. [2024-11-08 16:56:48,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 16:56:48,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:56:48,181 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:56:48,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 16:56:48,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-08 16:56:48,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:56:48,583 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:56:48,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:56:48,583 INFO L85 PathProgramCache]: Analyzing trace with hash -2083478077, now seen corresponding path program 1 times [2024-11-08 16:56:48,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:56:48,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912865477] [2024-11-08 16:56:48,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:48,587 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 [2024-11-08 16:56:48,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 16:56:48,590 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 16:56:48,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-08 16:57:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:31,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 6147 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 16:57:31,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:57:49,207 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:57:49,207 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:58:04,501 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:58:04,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912865477] [2024-11-08 16:58:04,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912865477] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:58:04,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799945719] [2024-11-08 16:58:04,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:04,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:58:04,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:58:04,504 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:58:04,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 16:58:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:41,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 6147 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 16:58:41,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:58:54,718 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 16:58:54,718 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:59:13,078 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 16:59:13,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799945719] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 16:59:13,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 16:59:13,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25 [2024-11-08 16:59:13,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468181626] [2024-11-08 16:59:13,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:13,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:59:13,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:59:13,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:59:13,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-11-08 16:59:13,080 INFO L87 Difference]: Start difference. First operand 143 states and 201 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-08 16:59:20,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:20,651 INFO L93 Difference]: Finished difference Result 180 states and 254 transitions. [2024-11-08 16:59:20,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:59:20,654 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 84 [2024-11-08 16:59:20,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:20,656 INFO L225 Difference]: With dead ends: 180 [2024-11-08 16:59:20,656 INFO L226 Difference]: Without dead ends: 139 [2024-11-08 16:59:20,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 241 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 25.8s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 16:59:20,659 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 233 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:20,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 1000 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-08 16:59:20,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-08 16:59:20,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-08 16:59:20,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 126 states have (on average 1.4285714285714286) internal successors, (180), 126 states have internal predecessors, (180), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 16:59:20,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 194 transitions. [2024-11-08 16:59:20,675 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 194 transitions. Word has length 84 [2024-11-08 16:59:20,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:20,676 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 194 transitions. [2024-11-08 16:59:20,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-08 16:59:20,676 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 194 transitions. [2024-11-08 16:59:20,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 16:59:20,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:20,679 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:20,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-08 16:59:20,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-08 16:59:21,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:59:21,080 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:59:21,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:21,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1653997505, now seen corresponding path program 1 times [2024-11-08 16:59:21,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:59:21,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144073866] [2024-11-08 16:59:21,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:21,084 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 [2024-11-08 16:59:21,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 16:59:21,085 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 16:59:21,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-08 17:00:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:03,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 6149 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 17:00:03,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:00:21,037 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:00:21,037 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:00:36,112 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:00:36,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144073866] [2024-11-08 17:00:36,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144073866] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:00:36,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79338956] [2024-11-08 17:00:36,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:36,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:36,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:36,114 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:00:36,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 17:01:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:14,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 6149 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 17:01:14,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:01:28,396 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 17:01:28,396 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:01:48,035 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 17:01:48,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79338956] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 17:01:48,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:01:48,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25 [2024-11-08 17:01:48,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517592176] [2024-11-08 17:01:48,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:01:48,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:01:48,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:01:48,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:01:48,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-11-08 17:01:48,038 INFO L87 Difference]: Start difference. First operand 139 states and 194 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-08 17:01:55,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:01:55,464 INFO L93 Difference]: Finished difference Result 176 states and 247 transitions. [2024-11-08 17:01:55,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:01:55,467 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 86 [2024-11-08 17:01:55,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:01:55,469 INFO L225 Difference]: With dead ends: 176 [2024-11-08 17:01:55,469 INFO L226 Difference]: Without dead ends: 135 [2024-11-08 17:01:55,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 247 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 26.7s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 17:01:55,471 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 226 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:01:55,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 959 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-08 17:01:55,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-08 17:01:55,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-11-08 17:01:55,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 122 states have (on average 1.4180327868852458) internal successors, (173), 122 states have internal predecessors, (173), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 17:01:55,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 187 transitions. [2024-11-08 17:01:55,489 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 187 transitions. Word has length 86 [2024-11-08 17:01:55,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:01:55,490 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 187 transitions. [2024-11-08 17:01:55,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-08 17:01:55,490 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 187 transitions. [2024-11-08 17:01:55,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 17:01:55,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:01:55,492 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:01:55,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-08 17:01:55,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-11-08 17:01:55,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 17:01:55,893 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:01:55,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:55,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2056140539, now seen corresponding path program 1 times [2024-11-08 17:01:55,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:01:55,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627281656] [2024-11-08 17:01:55,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:55,898 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 [2024-11-08 17:01:55,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:01:55,901 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 17:01:55,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-08 17:02:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:02:39,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 6150 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 17:02:39,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:02:59,651 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:02:59,652 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:03:17,297 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:03:17,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627281656] [2024-11-08 17:03:17,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627281656] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:03:17,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889727987] [2024-11-08 17:03:17,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:17,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:03:17,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:03:17,302 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:03:17,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb761bc0-f5f1-4027-b74c-929e5dba2dda/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 17:04:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:00,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 6150 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:04:00,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:04:03,958 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 17:04:03,959 INFO L311 TraceCheckSpWp]: Computing backward predicates...