./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/tanh_w8_r1_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_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_w8_r1_case_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 e5dfe403fa9085c96ebc6ba2764eb1c45311fd635f502b4818e4e04cfe371f3d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:12:39,295 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:12:39,397 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 19:12:39,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:12:39,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:12:39,434 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:12:39,435 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:12:39,435 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:12:39,436 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:12:39,437 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:12:39,437 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:12:39,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:12:39,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:12:39,440 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:12:39,440 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:12:39,441 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:12:39,442 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:12:39,442 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:12:39,443 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:12:39,443 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:12:39,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:12:39,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:12:39,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:12:39,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:12:39,446 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:12:39,447 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:12:39,447 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:12:39,448 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:12:39,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:12:39,449 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:12:39,450 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:12:39,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:12:39,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:12:39,451 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:12:39,451 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:12:39,452 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:12:39,452 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:12:39,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:12:39,453 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:12:39,454 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:12:39,454 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:12:39,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:12:39,459 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_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5dfe403fa9085c96ebc6ba2764eb1c45311fd635f502b4818e4e04cfe371f3d [2024-11-08 19:12:39,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:12:39,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:12:39,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:12:39,927 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:12:39,928 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:12:39,929 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/neural-networks/tanh_w8_r1_case_1_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-08 19:12:42,586 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:12:43,199 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:12:43,203 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/sv-benchmarks/c/neural-networks/tanh_w8_r1_case_1_safe.c-amalgamation.i [2024-11-08 19:12:43,250 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/data/e202e5a64/9d55f9513677414180a350ad4b1d9492/FLAG3ff5853a7 [2024-11-08 19:12:43,737 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/data/e202e5a64/9d55f9513677414180a350ad4b1d9492 [2024-11-08 19:12:43,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:12:43,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:12:43,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:12:43,745 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:12:43,754 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:12:43,755 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:12:43" (1/1) ... [2024-11-08 19:12:43,757 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@320cfaca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:12:43, skipping insertion in model container [2024-11-08 19:12:43,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:12:43" (1/1) ... [2024-11-08 19:12:43,887 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:12:45,607 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_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/sv-benchmarks/c/neural-networks/tanh_w8_r1_case_1_safe.c-amalgamation.i[71669,71682] [2024-11-08 19:12:46,128 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 19:12:46,136 INFO L158 Benchmark]: Toolchain (without parser) took 2392.67ms. Allocated memory is still 172.0MB. Free memory was 128.9MB in the beginning and 93.7MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-08 19:12:46,137 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 172.0MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:12:46,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2389.35ms. Allocated memory is still 172.0MB. Free memory was 128.9MB in the beginning and 93.7MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-08 19:12:46,140 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 172.0MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2389.35ms. Allocated memory is still 172.0MB. Free memory was 128.9MB in the beginning and 93.7MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:627) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_w8_r1_case_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 e5dfe403fa9085c96ebc6ba2764eb1c45311fd635f502b4818e4e04cfe371f3d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:12:49,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:12:49,728 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 19:12:49,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:12:49,745 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:12:49,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:12:49,806 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:12:49,807 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:12:49,808 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:12:49,809 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:12:49,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:12:49,811 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:12:49,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:12:49,816 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:12:49,816 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:12:49,817 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:12:49,818 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:12:49,818 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:12:49,819 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:12:49,819 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:12:49,820 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:12:49,824 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:12:49,825 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:12:49,825 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 19:12:49,826 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 19:12:49,826 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:12:49,826 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 19:12:49,827 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:12:49,828 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:12:49,831 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:12:49,832 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:12:49,832 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:12:49,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:12:49,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:12:49,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:12:49,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:12:49,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:12:49,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:12:49,838 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 19:12:49,838 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:12:49,839 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:12:49,840 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:12:49,840 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:12:49,840 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:12:49,841 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_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5dfe403fa9085c96ebc6ba2764eb1c45311fd635f502b4818e4e04cfe371f3d [2024-11-08 19:12:50,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:12:50,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:12:50,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:12:50,509 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:12:50,510 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:12:50,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/neural-networks/tanh_w8_r1_case_1_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-08 19:12:53,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:12:54,172 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:12:54,175 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/sv-benchmarks/c/neural-networks/tanh_w8_r1_case_1_safe.c-amalgamation.i [2024-11-08 19:12:54,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/data/cd99fabb5/69c777d2fa51489292d5466c040aadcc/FLAG4de0a506e [2024-11-08 19:12:54,256 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/data/cd99fabb5/69c777d2fa51489292d5466c040aadcc [2024-11-08 19:12:54,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:12:54,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:12:54,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:12:54,269 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:12:54,277 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:12:54,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:12:54" (1/1) ... [2024-11-08 19:12:54,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed6f297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:12:54, skipping insertion in model container [2024-11-08 19:12:54,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:12:54" (1/1) ... [2024-11-08 19:12:54,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:12:55,977 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_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/sv-benchmarks/c/neural-networks/tanh_w8_r1_case_1_safe.c-amalgamation.i[71669,71682] [2024-11-08 19:12:56,491 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 19:12:56,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:12:56,643 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:12:56,788 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/sv-benchmarks/c/neural-networks/tanh_w8_r1_case_1_safe.c-amalgamation.i[71669,71682] [2024-11-08 19:12:57,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:12:57,353 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:12:57,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:12:57 WrapperNode [2024-11-08 19:12:57,354 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:12:57,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:12:57,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:12:57,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:12:57,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:12:57" (1/1) ... [2024-11-08 19:12:57,447 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:12:57" (1/1) ... [2024-11-08 19:12:57,538 INFO L138 Inliner]: procedures = 780, calls = 1169, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 548 [2024-11-08 19:12:57,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:12:57,544 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:12:57,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:12:57,547 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:12:57,566 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:12:57" (1/1) ... [2024-11-08 19:12:57,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:12:57" (1/1) ... [2024-11-08 19:12:57,583 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:12:57" (1/1) ... [2024-11-08 19:12:57,661 INFO L175 MemorySlicer]: Split 297 memory accesses to 12 slices as follows [11, 131, 2, 7, 55, 2, 10, 11, 9, 12, 35, 12]. 44 percent of accesses are in the largest equivalence class. The 99 initializations are split as follows [8, 0, 2, 7, 24, 2, 8, 8, 8, 8, 16, 8]. The 156 writes are split as follows [0, 130, 0, 0, 14, 0, 0, 0, 0, 3, 9, 0]. [2024-11-08 19:12:57,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:12:57" (1/1) ... [2024-11-08 19:12:57,662 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:12:57" (1/1) ... [2024-11-08 19:12:57,702 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:12:57" (1/1) ... [2024-11-08 19:12:57,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:12:57" (1/1) ... [2024-11-08 19:12:57,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:12:57" (1/1) ... [2024-11-08 19:12:57,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:12:57" (1/1) ... [2024-11-08 19:12:57,759 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:12:57,761 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:12:57,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:12:57,764 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:12:57,765 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:12:57" (1/1) ... [2024-11-08 19:12:57,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:12:57,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:12:57,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:12:57,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:12:57,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-08 19:12:57,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-08 19:12:57,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-08 19:12:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-08 19:12:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-08 19:12:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-08 19:12:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-08 19:12:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-08 19:12:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-08 19:12:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-08 19:12:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-08 19:12:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-08 19:12:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNN [2024-11-08 19:12:57,875 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNN [2024-11-08 19:12:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-08 19:12:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-08 19:12:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2 [2024-11-08 19:12:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3 [2024-11-08 19:12:57,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4 [2024-11-08 19:12:57,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5 [2024-11-08 19:12:57,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6 [2024-11-08 19:12:57,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7 [2024-11-08 19:12:57,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8 [2024-11-08 19:12:57,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9 [2024-11-08 19:12:57,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10 [2024-11-08 19:12:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#11 [2024-11-08 19:12:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:12:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:12:57,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:12:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-08 19:12:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-08 19:12:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-08 19:12:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-08 19:12:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-08 19:12:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-08 19:12:57,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-08 19:12:57,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-08 19:12:57,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-08 19:12:57,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-08 19:12:57,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-11-08 19:12:57,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-11-08 19:12:57,881 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-08 19:12:57,881 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-08 19:12:57,881 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-08 19:12:57,881 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-08 19:12:57,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-08 19:12:57,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-08 19:12:57,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-08 19:12:57,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-08 19:12:57,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-08 19:12:57,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-08 19:12:57,883 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-11-08 19:12:57,883 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-11-08 19:12:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 19:12:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 19:12:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 19:12:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 19:12:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 19:12:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 19:12:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 19:12:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-08 19:12:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-08 19:12:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-08 19:12:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-08 19:12:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-08 19:12:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-08 19:12:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_affine_matmul [2024-11-08 19:12:57,887 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_affine_matmul [2024-11-08 19:12:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-08 19:12:57,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-08 19:12:57,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 19:12:57,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 19:12:57,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 19:12:57,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 19:12:57,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 19:12:57,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-08 19:12:57,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-08 19:12:57,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-08 19:12:57,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-08 19:12:57,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-08 19:12:57,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-08 19:12:57,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-08 19:12:57,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-08 19:12:57,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-08 19:12:57,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-08 19:12:57,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-08 19:12:57,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-08 19:12:57,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-08 19:12:57,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-08 19:12:57,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-08 19:12:57,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-08 19:12:57,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-11-08 19:12:57,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-11-08 19:12:57,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2024-11-08 19:12:57,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2024-11-08 19:12:57,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-08 19:12:57,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-08 19:12:57,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-08 19:12:57,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-08 19:12:57,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-08 19:12:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-08 19:12:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-08 19:12:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-11-08 19:12:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-11-08 19:12:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-11-08 19:12:57,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-11-08 19:12:57,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2024-11-08 19:12:57,927 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNNcell [2024-11-08 19:12:57,927 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNNcell [2024-11-08 19:12:57,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 19:12:57,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 19:12:57,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 19:12:57,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-08 19:12:57,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-08 19:12:57,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-08 19:12:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-08 19:12:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-08 19:12:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-08 19:12:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-08 19:12:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-08 19:12:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-08 19:12:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-08 19:12:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-08 19:12:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-08 19:12:57,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-08 19:12:57,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-08 19:12:57,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-08 19:12:57,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-08 19:12:57,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-08 19:12:57,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-08 19:12:57,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-08 19:12:57,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-08 19:12:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-08 19:12:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-08 19:12:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-08 19:12:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-08 19:12:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-08 19:12:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-08 19:12:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-08 19:12:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-08 19:12:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-08 19:12:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-08 19:12:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-08 19:12:57,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-08 19:12:57,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-08 19:12:58,452 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:12:58,457 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:13:14,012 INFO L? ?]: Removed 190 outVars from TransFormulas that were not future-live. [2024-11-08 19:13:14,012 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:13:14,037 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:13:14,038 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:13:14,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:13:14 BoogieIcfgContainer [2024-11-08 19:13:14,038 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:13:14,042 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:13:14,043 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:13:14,050 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:13:14,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:12:54" (1/3) ... [2024-11-08 19:13:14,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e997c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:13:14, skipping insertion in model container [2024-11-08 19:13:14,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:12:57" (2/3) ... [2024-11-08 19:13:14,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e997c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:13:14, skipping insertion in model container [2024-11-08 19:13:14,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:13:14" (3/3) ... [2024-11-08 19:13:14,057 INFO L112 eAbstractionObserver]: Analyzing ICFG tanh_w8_r1_case_1_safe.c-amalgamation.i [2024-11-08 19:13:14,079 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:13:14,080 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 19:13:14,189 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:13:14,197 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;@d4e8899, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:13:14,198 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 19:13:14,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 125 states have (on average 1.52) internal successors, (190), 126 states have internal predecessors, (190), 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 19:13:14,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-08 19:13:14,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:14,218 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] [2024-11-08 19:13:14,219 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:14,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:14,227 INFO L85 PathProgramCache]: Analyzing trace with hash -719611495, now seen corresponding path program 1 times [2024-11-08 19:13:14,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:13:14,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1703979647] [2024-11-08 19:13:14,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:14,251 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 19:13:14,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:13:14,255 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:13:14,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:13:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:19,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 19:13:19,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:13:20,005 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 19:13:20,005 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:13:20,006 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:13:20,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1703979647] [2024-11-08 19:13:20,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1703979647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:20,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:20,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:13:20,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477345048] [2024-11-08 19:13:20,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:20,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 19:13:20,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:13:20,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 19:13:20,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:13:20,048 INFO L87 Difference]: Start difference. First operand has 139 states, 125 states have (on average 1.52) internal successors, (190), 126 states have internal predecessors, (190), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 19:13:20,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:20,093 INFO L93 Difference]: Finished difference Result 274 states and 402 transitions. [2024-11-08 19:13:20,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 19:13:20,095 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 23 [2024-11-08 19:13:20,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:20,107 INFO L225 Difference]: With dead ends: 274 [2024-11-08 19:13:20,107 INFO L226 Difference]: Without dead ends: 135 [2024-11-08 19:13:20,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 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 19:13:20,117 INFO L432 NwaCegarLoop]: 200 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, 200 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 19:13:20,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:13:20,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-08 19:13:20,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-11-08 19:13:20,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 122 states have (on average 1.4918032786885247) internal successors, (182), 122 states have internal predecessors, (182), 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 19:13:20,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 196 transitions. [2024-11-08 19:13:20,193 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 196 transitions. Word has length 23 [2024-11-08 19:13:20,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:20,194 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 196 transitions. [2024-11-08 19:13:20,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 19:13:20,194 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 196 transitions. [2024-11-08 19:13:20,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-08 19:13:20,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:20,196 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] [2024-11-08 19:13:20,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:13:20,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:13:20,397 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:20,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:20,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1746590101, now seen corresponding path program 1 times [2024-11-08 19:13:20,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:13:20,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172956128] [2024-11-08 19:13:20,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:20,410 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 19:13:20,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:13:20,419 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:13:20,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:13:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:26,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:13:26,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:13:27,404 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 19:13:27,404 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:13:27,405 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:13:27,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172956128] [2024-11-08 19:13:27,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172956128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:27,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:27,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:13:27,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141313459] [2024-11-08 19:13:27,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:27,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:13:27,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:13:27,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:13:27,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:13:27,410 INFO L87 Difference]: Start difference. First operand 135 states and 196 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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 19:13:27,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:13:27,856 INFO L93 Difference]: Finished difference Result 146 states and 209 transitions. [2024-11-08 19:13:27,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:13:27,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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 23 [2024-11-08 19:13:27,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:13:27,869 INFO L225 Difference]: With dead ends: 146 [2024-11-08 19:13:27,869 INFO L226 Difference]: Without dead ends: 125 [2024-11-08 19:13:27,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:13:27,871 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 19 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:13:27,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 752 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:13:27,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-08 19:13:27,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-08 19:13:27,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 113 states have (on average 1.4778761061946903) internal successors, (167), 113 states have internal predecessors, (167), 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 19:13:27,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 179 transitions. [2024-11-08 19:13:27,899 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 179 transitions. Word has length 23 [2024-11-08 19:13:27,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:13:27,900 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 179 transitions. [2024-11-08 19:13:27,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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 19:13:27,900 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 179 transitions. [2024-11-08 19:13:27,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-08 19:13:27,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:13:27,902 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] [2024-11-08 19:13:27,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:13:28,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:13:28,103 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:13:28,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:13:28,103 INFO L85 PathProgramCache]: Analyzing trace with hash 673692272, now seen corresponding path program 1 times [2024-11-08 19:13:28,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:13:28,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662056821] [2024-11-08 19:13:28,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:13:28,106 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 19:13:28,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:13:28,110 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:13:28,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:13:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:13:32,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 19:13:32,768 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:13:36,733 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 19:13:36,734 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:13:36,734 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:13:36,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1662056821] [2024-11-08 19:13:36,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1662056821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:13:36,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:13:36,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:13:36,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002523045] [2024-11-08 19:13:36,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:13:36,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:13:36,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:13:36,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:13:36,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:13:36,738 INFO L87 Difference]: Start difference. First operand 125 states and 179 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 19:13:40,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s 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 19:13:44,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 19:13:48,549 WARN L539 Checker$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 19:13:52,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:13:57,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:14:01,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.77s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 19:14:06,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.05s 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 19:14:11,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.96s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 19:14:16,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:14:17,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 19:14:27,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:14:27,932 INFO L93 Difference]: Finished difference Result 146 states and 208 transitions. [2024-11-08 19:14:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:14:27,935 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 23 [2024-11-08 19:14:27,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:14:27,940 INFO L225 Difference]: With dead ends: 146 [2024-11-08 19:14:27,940 INFO L226 Difference]: Without dead ends: 134 [2024-11-08 19:14:27,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:14:27,942 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 215 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:14:27,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 932 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 8 Unknown, 0 Unchecked, 51.1s Time] [2024-11-08 19:14:27,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-08 19:14:27,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 127. [2024-11-08 19:14:27,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 115 states have (on average 1.4695652173913043) internal successors, (169), 115 states have internal predecessors, (169), 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 19:14:27,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 181 transitions. [2024-11-08 19:14:27,964 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 181 transitions. Word has length 23 [2024-11-08 19:14:27,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:14:27,964 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 181 transitions. [2024-11-08 19:14:27,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 19:14:27,965 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 181 transitions. [2024-11-08 19:14:27,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 19:14:27,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:14:27,968 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] [2024-11-08 19:14:28,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:14:28,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:14:28,168 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:14:28,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:28,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1356618834, now seen corresponding path program 1 times [2024-11-08 19:14:28,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:14:28,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106113850] [2024-11-08 19:14:28,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:28,170 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 19:14:28,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:14:28,173 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:14:28,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:14:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:32,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 1911 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:14:32,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:15:15,562 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 19:15:15,562 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:15:54,673 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:15:54,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106113850] [2024-11-08 19:15:54,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106113850] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:15:54,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714347155] [2024-11-08 19:15:54,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:15:54,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:15:54,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:15:54,677 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:15:54,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 19:15:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:57,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 1911 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 19:15:57,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:00,264 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 19:16:00,264 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:16:00,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714347155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:00,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:16:00,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2024-11-08 19:16:00,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436793112] [2024-11-08 19:16:00,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:00,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:16:00,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:16:00,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:16:00,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:16:00,267 INFO L87 Difference]: Start difference. First operand 127 states and 181 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 19:16:00,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:00,865 INFO L93 Difference]: Finished difference Result 246 states and 356 transitions. [2024-11-08 19:16:00,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:16:00,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 69 [2024-11-08 19:16:00,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:00,868 INFO L225 Difference]: With dead ends: 246 [2024-11-08 19:16:00,868 INFO L226 Difference]: Without dead ends: 135 [2024-11-08 19:16:00,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 137 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 29.7s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:16:00,871 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 4 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:00,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 358 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 19:16:00,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-08 19:16:00,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-11-08 19:16:00,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 122 states have (on average 1.459016393442623) internal successors, (178), 122 states have internal predecessors, (178), 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 19:16:00,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 192 transitions. [2024-11-08 19:16:00,914 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 192 transitions. Word has length 69 [2024-11-08 19:16:00,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:00,915 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 192 transitions. [2024-11-08 19:16:00,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 19:16:00,915 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 192 transitions. [2024-11-08 19:16:00,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-08 19:16:00,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:00,917 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] [2024-11-08 19:16:00,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 19:16:01,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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)] Ended with exit code 0 [2024-11-08 19:16:01,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:16:01,322 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:16:01,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:01,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1330091935, now seen corresponding path program 1 times [2024-11-08 19:16:01,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:16:01,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [78228977] [2024-11-08 19:16:01,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:01,326 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 19:16:01,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:16:01,329 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:16:01,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:16:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:05,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 1914 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:16:05,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:50,399 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 19:16:50,400 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:17:28,933 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:17:28,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [78228977] [2024-11-08 19:17:28,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [78228977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:28,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120769345] [2024-11-08 19:17:28,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:28,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:28,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:17:28,937 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:17:28,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 19:17:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:31,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 1914 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 19:17:31,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:04,130 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 19:18:04,130 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:18:50,731 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 19:18:50,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120769345] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:18:50,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:18:50,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25 [2024-11-08 19:18:50,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344235263] [2024-11-08 19:18:50,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:18:50,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:18:50,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:18:50,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:18:50,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-11-08 19:18:50,733 INFO L87 Difference]: Start difference. First operand 135 states and 192 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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 19:19:08,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:08,427 INFO L93 Difference]: Finished difference Result 172 states and 245 transitions. [2024-11-08 19:19:08,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:19:08,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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 71 [2024-11-08 19:19:08,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:08,433 INFO L225 Difference]: With dead ends: 172 [2024-11-08 19:19:08,433 INFO L226 Difference]: Without dead ends: 131 [2024-11-08 19:19:08,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 202 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 67.3s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 19:19:08,436 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 247 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:08,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 805 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2024-11-08 19:19:08,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-08 19:19:08,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2024-11-08 19:19:08,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 118 states have (on average 1.4491525423728813) internal successors, (171), 118 states have internal predecessors, (171), 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 19:19:08,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 185 transitions. [2024-11-08 19:19:08,463 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 185 transitions. Word has length 71 [2024-11-08 19:19:08,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:08,464 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 185 transitions. [2024-11-08 19:19:08,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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 19:19:08,465 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 185 transitions. [2024-11-08 19:19:08,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-08 19:19:08,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:08,468 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] [2024-11-08 19:19:08,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:08,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:08,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:19:08,869 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:19:08,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:08,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1453888611, now seen corresponding path program 1 times [2024-11-08 19:19:08,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:19:08,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52869632] [2024-11-08 19:19:08,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:08,871 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 19:19:08,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:19:08,872 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:19:08,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:19:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:13,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 1915 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:19:13,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:57,757 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 19:19:57,758 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:37,806 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:20:37,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52869632] [2024-11-08 19:20:37,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52869632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:20:37,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241455709] [2024-11-08 19:20:37,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:37,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:20:37,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:20:37,808 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:20:37,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 19:20:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:40,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 1915 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 19:20:40,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:21:14,238 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 19:21:14,239 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:22:03,117 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 19:22:03,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241455709] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:22:03,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:22:03,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25 [2024-11-08 19:22:03,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448808135] [2024-11-08 19:22:03,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:22:03,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:22:03,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:22:03,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:22:03,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-11-08 19:22:03,121 INFO L87 Difference]: Start difference. First operand 131 states and 185 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 19:22:19,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:22:19,551 INFO L93 Difference]: Finished difference Result 168 states and 238 transitions. [2024-11-08 19:22:19,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:22:19,555 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 72 [2024-11-08 19:22:19,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:22:19,556 INFO L225 Difference]: With dead ends: 168 [2024-11-08 19:22:19,556 INFO L226 Difference]: Without dead ends: 127 [2024-11-08 19:22:19,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 205 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 68.6s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 19:22:19,558 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 243 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:22:19,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 622 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-11-08 19:22:19,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-08 19:22:19,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-08 19:22:19,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 114 states have (on average 1.4385964912280702) internal successors, (164), 114 states have internal predecessors, (164), 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 19:22:19,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 178 transitions. [2024-11-08 19:22:19,588 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 178 transitions. Word has length 72 [2024-11-08 19:22:19,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:22:19,589 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 178 transitions. [2024-11-08 19:22:19,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 19:22:19,590 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 178 transitions. [2024-11-08 19:22:19,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 19:22:19,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:22:19,596 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] [2024-11-08 19:22:19,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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)] Ended with exit code 0 [2024-11-08 19:22:19,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-08 19:22:19,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:22:19,997 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:22:19,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:22:19,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1052992997, now seen corresponding path program 1 times [2024-11-08 19:22:19,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:22:19,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [117259779] [2024-11-08 19:22:19,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:22:19,998 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 19:22:19,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:22:19,999 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:22:20,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:22:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:22:24,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 1917 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:22:24,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:23:10,446 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 19:23:10,447 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:23:50,871 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:23:50,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [117259779] [2024-11-08 19:23:50,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [117259779] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:23:50,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749288614] [2024-11-08 19:23:50,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:23:50,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:23:50,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:23:50,874 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:23:50,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 19:23:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:23:54,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 1917 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 19:23:54,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:24:27,447 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 19:24:27,447 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:25:14,239 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 19:25:14,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749288614] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:25:14,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:25:14,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25 [2024-11-08 19:25:14,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445544755] [2024-11-08 19:25:14,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:25:14,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:25:14,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:25:14,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:25:14,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-11-08 19:25:14,242 INFO L87 Difference]: Start difference. First operand 127 states and 178 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 19:25:30,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:25:30,107 INFO L93 Difference]: Finished difference Result 164 states and 231 transitions. [2024-11-08 19:25:30,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:25:30,111 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 74 [2024-11-08 19:25:30,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:25:30,113 INFO L225 Difference]: With dead ends: 164 [2024-11-08 19:25:30,113 INFO L226 Difference]: Without dead ends: 123 [2024-11-08 19:25:30,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 211 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 67.9s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 19:25:30,115 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 236 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:25:30,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 595 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-11-08 19:25:30,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-08 19:25:30,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-11-08 19:25:30,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 110 states have (on average 1.4272727272727272) internal successors, (157), 110 states have internal predecessors, (157), 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 19:25:30,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 171 transitions. [2024-11-08 19:25:30,143 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 171 transitions. Word has length 74 [2024-11-08 19:25:30,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:25:30,144 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 171 transitions. [2024-11-08 19:25:30,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 19:25:30,144 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 171 transitions. [2024-11-08 19:25:30,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-08 19:25:30,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:25:30,146 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] [2024-11-08 19:25:30,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-08 19:25:30,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:25:30,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:25:30,547 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:25:30,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:25:30,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1555609337, now seen corresponding path program 1 times [2024-11-08 19:25:30,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:25:30,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132870119] [2024-11-08 19:25:30,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:25:30,549 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 19:25:30,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:25:30,550 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:25:30,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:25:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:25:34,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:25:34,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:26:20,363 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 19:26:20,363 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:26:58,700 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:26:58,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132870119] [2024-11-08 19:26:58,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132870119] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:26:58,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199729932] [2024-11-08 19:26:58,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:26:58,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:26:58,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:26:58,703 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:26:58,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 19:27:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:27:02,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:27:02,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:27:12,256 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 19:27:12,256 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:27:30,688 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 19:27:30,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199729932] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:27:30,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:27:30,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13, 5] total 18 [2024-11-08 19:27:30,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10050022] [2024-11-08 19:27:30,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:27:30,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:27:30,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:27:30,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:27:30,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:27:30,690 INFO L87 Difference]: Start difference. First operand 123 states and 171 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 19:27:32,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:27:32,084 INFO L93 Difference]: Finished difference Result 130 states and 177 transitions. [2024-11-08 19:27:32,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:27:32,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 75 [2024-11-08 19:27:32,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:27:32,086 INFO L225 Difference]: With dead ends: 130 [2024-11-08 19:27:32,087 INFO L226 Difference]: Without dead ends: 112 [2024-11-08 19:27:32,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 221 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 39.5s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:27:32,088 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 18 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:27:32,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 599 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 19:27:32,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-08 19:27:32,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-08 19:27:32,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 100 states have (on average 1.41) internal successors, (141), 100 states have internal predecessors, (141), 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 19:27:32,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 153 transitions. [2024-11-08 19:27:32,105 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 153 transitions. Word has length 75 [2024-11-08 19:27:32,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:27:32,106 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 153 transitions. [2024-11-08 19:27:32,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 19:27:32,107 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 153 transitions. [2024-11-08 19:27:32,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-08 19:27:32,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:27:32,108 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] [2024-11-08 19:27:32,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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)] Ended with exit code 0 [2024-11-08 19:27:32,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-08 19:27:32,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:27:32,509 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:27:32,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:27:32,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1067467879, now seen corresponding path program 1 times [2024-11-08 19:27:32,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:27:32,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835390250] [2024-11-08 19:27:32,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:27:32,512 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 19:27:32,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:27:32,516 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 19:27:32,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2bc4b1-bb86-4a56-9e1b-cacbfed82640/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 (15)] Waiting until timeout for monitored process [2024-11-08 19:27:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:27:38,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:27:38,027 INFO L278 TraceCheckSpWp]: Computing forward predicates...