./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/softsign_w8_r1_case_1_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/softsign_w8_r1_case_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fefe0f177b0f7cce62cb716defd84d96bec525a86f0f180b9992186827fc471 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:09:19,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:09:19,276 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:09:19,281 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:09:19,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:09:19,318 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:09:19,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:09:19,319 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:09:19,319 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:09:19,319 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:09:19,319 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:09:19,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:09:19,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:09:19,325 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:09:19,325 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:09:19,325 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:09:19,326 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:09:19,326 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:09:19,326 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:09:19,326 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:09:19,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:09:19,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:09:19,326 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:09:19,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:09:19,327 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:09:19,327 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:09:19,327 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:09:19,327 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:09:19,327 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:09:19,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:09:19,328 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:09:19,328 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:09:19,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:09:19,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:09:19,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:09:19,328 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:09:19,328 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:09:19,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:09:19,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:09:19,329 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:09:19,329 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:09:19,329 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:09:19,329 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:09:19,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:09:19,330 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:09:19,330 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:09:19,330 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:09:19,330 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:09:19,330 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fefe0f177b0f7cce62cb716defd84d96bec525a86f0f180b9992186827fc471 [2024-11-28 02:09:19,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:09:19,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:09:19,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:09:19,662 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:09:19,663 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:09:19,665 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/neural-networks/softsign_w8_r1_case_1_safe.c-amalgamation.i [2024-11-28 02:09:22,764 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/data/242bc7f0b/2c5126a1a005483faca92bc40661b3e2/FLAG336becd7e [2024-11-28 02:09:23,353 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:09:23,358 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/sv-benchmarks/c/neural-networks/softsign_w8_r1_case_1_safe.c-amalgamation.i [2024-11-28 02:09:23,398 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/data/242bc7f0b/2c5126a1a005483faca92bc40661b3e2/FLAG336becd7e [2024-11-28 02:09:23,426 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/data/242bc7f0b/2c5126a1a005483faca92bc40661b3e2 [2024-11-28 02:09:23,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:09:23,431 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:09:23,433 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:09:23,433 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:09:23,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:09:23,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:09:23" (1/1) ... [2024-11-28 02:09:23,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76077682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:23, skipping insertion in model container [2024-11-28 02:09:23,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:09:23" (1/1) ... [2024-11-28 02:09:23,516 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:09:24,980 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_a08befdf-d524-41e8-9ec2-584e6ddb3e70/sv-benchmarks/c/neural-networks/softsign_w8_r1_case_1_safe.c-amalgamation.i[71683,71696] [2024-11-28 02:09:25,390 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:629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3128) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1602) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:783) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2556) 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:783) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:783) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1507) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1158) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1141) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleLoopBody(CHandler.java:3602) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1554) 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:1158) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1141) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:393) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3507) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2500) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:641) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-28 02:09:25,401 INFO L158 Benchmark]: Toolchain (without parser) took 1969.17ms. Allocated memory is still 117.4MB. Free memory was 87.8MB in the beginning and 55.5MB in the end (delta: 32.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 02:09:25,402 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:09:25,402 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1966.08ms. Allocated memory is still 117.4MB. Free memory was 87.6MB in the beginning and 55.5MB in the end (delta: 32.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 02:09:25,404 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1966.08ms. Allocated memory is still 117.4MB. Free memory was 87.6MB in the beginning and 55.5MB in the end (delta: 32.1MB). Peak memory consumption was 25.2MB. 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:629) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/softsign_w8_r1_case_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fefe0f177b0f7cce62cb716defd84d96bec525a86f0f180b9992186827fc471 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:09:28,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:09:28,812 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 02:09:28,824 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:09:28,825 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:09:28,873 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:09:28,874 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:09:28,874 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:09:28,875 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:09:28,876 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:09:28,876 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:09:28,877 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:09:28,878 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:09:28,878 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:09:28,878 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:09:28,880 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:09:28,880 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:09:28,880 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:09:28,880 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:09:28,880 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:09:28,880 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:09:28,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:09:28,881 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:09:28,881 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:09:28,881 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:09:28,882 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:09:28,882 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:09:28,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:09:28,882 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:09:28,882 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:09:28,882 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:09:28,883 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:09:28,883 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:09:28,884 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:09:28,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:09:28,884 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:09:28,884 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:09:28,884 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:09:28,884 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:09:28,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:09:28,884 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:09:28,884 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:09:28,885 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:09:28,885 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:09:28,885 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:09:28,885 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:09:28,885 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:09:28,885 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:09:28,885 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:09:28,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:09:28,885 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fefe0f177b0f7cce62cb716defd84d96bec525a86f0f180b9992186827fc471 [2024-11-28 02:09:29,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:09:29,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:09:29,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:09:29,296 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:09:29,298 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:09:29,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/neural-networks/softsign_w8_r1_case_1_safe.c-amalgamation.i [2024-11-28 02:09:32,330 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/data/e326a33a3/3283e235b0f346ba90bf8191b3586b1b/FLAG87193a601 [2024-11-28 02:09:32,929 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:09:32,931 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/sv-benchmarks/c/neural-networks/softsign_w8_r1_case_1_safe.c-amalgamation.i [2024-11-28 02:09:32,984 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/data/e326a33a3/3283e235b0f346ba90bf8191b3586b1b/FLAG87193a601 [2024-11-28 02:09:33,412 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/data/e326a33a3/3283e235b0f346ba90bf8191b3586b1b [2024-11-28 02:09:33,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:09:33,416 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:09:33,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:09:33,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:09:33,423 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:09:33,424 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:09:33" (1/1) ... [2024-11-28 02:09:33,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@478f8442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:33, skipping insertion in model container [2024-11-28 02:09:33,425 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:09:33" (1/1) ... [2024-11-28 02:09:33,522 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:09:34,806 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_a08befdf-d524-41e8-9ec2-584e6ddb3e70/sv-benchmarks/c/neural-networks/softsign_w8_r1_case_1_safe.c-amalgamation.i[71683,71696] [2024-11-28 02:09:35,360 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:09:35,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:09:35,470 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:09:35,539 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_a08befdf-d524-41e8-9ec2-584e6ddb3e70/sv-benchmarks/c/neural-networks/softsign_w8_r1_case_1_safe.c-amalgamation.i[71683,71696] [2024-11-28 02:09:35,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:09:36,103 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:09:36,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:36 WrapperNode [2024-11-28 02:09:36,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:09:36,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:09:36,106 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:09:36,106 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:09:36,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:36" (1/1) ... [2024-11-28 02:09:36,192 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:36" (1/1) ... [2024-11-28 02:09:36,256 INFO L138 Inliner]: procedures = 780, calls = 1169, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 548 [2024-11-28 02:09:36,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:09:36,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:09:36,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:09:36,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:09:36,267 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:36" (1/1) ... [2024-11-28 02:09:36,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:36" (1/1) ... [2024-11-28 02:09:36,273 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:36" (1/1) ... [2024-11-28 02:09:36,321 INFO L175 MemorySlicer]: Split 297 memory accesses to 12 slices as follows [55, 11, 2, 7, 35, 2, 12, 9, 131, 10, 11, 12]. 44 percent of accesses are in the largest equivalence class. The 99 initializations are split as follows [24, 8, 2, 7, 16, 2, 8, 8, 0, 8, 8, 8]. The 156 writes are split as follows [14, 0, 0, 0, 9, 0, 0, 0, 130, 0, 0, 3]. [2024-11-28 02:09:36,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:36" (1/1) ... [2024-11-28 02:09:36,321 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:36" (1/1) ... [2024-11-28 02:09:36,358 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:36" (1/1) ... [2024-11-28 02:09:36,365 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:36" (1/1) ... [2024-11-28 02:09:36,377 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:36" (1/1) ... [2024-11-28 02:09:36,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:36" (1/1) ... [2024-11-28 02:09:36,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:36" (1/1) ... [2024-11-28 02:09:36,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:09:36,438 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:09:36,438 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:09:36,438 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:09:36,439 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:36" (1/1) ... [2024-11-28 02:09:36,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:09:36,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:36,484 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:09:36,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:09:36,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-28 02:09:36,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-28 02:09:36,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-28 02:09:36,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-28 02:09:36,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-28 02:09:36,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-28 02:09:36,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-28 02:09:36,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-28 02:09:36,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-28 02:09:36,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-28 02:09:36,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-28 02:09:36,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-28 02:09:36,527 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNN [2024-11-28 02:09:36,527 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNN [2024-11-28 02:09:36,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-28 02:09:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-28 02:09:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2 [2024-11-28 02:09:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3 [2024-11-28 02:09:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4 [2024-11-28 02:09:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5 [2024-11-28 02:09:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6 [2024-11-28 02:09:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7 [2024-11-28 02:09:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8 [2024-11-28 02:09:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9 [2024-11-28 02:09:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10 [2024-11-28 02:09:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#11 [2024-11-28 02:09:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:09:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:09:36,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:09:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 02:09:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 02:09:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 02:09:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-28 02:09:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-28 02:09:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-28 02:09:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-28 02:09:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-28 02:09:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-28 02:09:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-28 02:09:36,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-11-28 02:09:36,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-11-28 02:09:36,531 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 02:09:36,534 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 02:09:36,534 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 02:09:36,534 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-28 02:09:36,534 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-28 02:09:36,534 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-28 02:09:36,534 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-28 02:09:36,535 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-28 02:09:36,535 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-28 02:09:36,535 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-28 02:09:36,535 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-11-28 02:09:36,535 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-11-28 02:09:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:09:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:09:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:09:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:09:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 02:09:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 02:09:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 02:09:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 02:09:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 02:09:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-28 02:09:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-28 02:09:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-28 02:09:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-28 02:09:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_affine_matmul [2024-11-28 02:09:36,536 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_affine_matmul [2024-11-28 02:09:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-28 02:09:36,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-28 02:09:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:09:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:09:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:09:36,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 02:09:36,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-28 02:09:36,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-28 02:09:36,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-28 02:09:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-28 02:09:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-28 02:09:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-28 02:09:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-28 02:09:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-28 02:09:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-28 02:09:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-28 02:09:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-28 02:09:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-28 02:09:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-28 02:09:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-28 02:09:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-28 02:09:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-28 02:09:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-28 02:09:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-11-28 02:09:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-11-28 02:09:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2024-11-28 02:09:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2024-11-28 02:09:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-28 02:09:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-28 02:09:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-28 02:09:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-28 02:09:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-28 02:09:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-28 02:09:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-28 02:09:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-11-28 02:09:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-11-28 02:09:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-11-28 02:09:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-11-28 02:09:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2024-11-28 02:09:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNNcell [2024-11-28 02:09:36,547 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNNcell [2024-11-28 02:09:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 02:09:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 02:09:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 02:09:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-28 02:09:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-28 02:09:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-28 02:09:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-28 02:09:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-28 02:09:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-28 02:09:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-28 02:09:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-28 02:09:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-28 02:09:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-28 02:09:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-28 02:09:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-28 02:09:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-28 02:09:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-28 02:09:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-28 02:09:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-28 02:09:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-28 02:09:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-28 02:09:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-28 02:09:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-28 02:09:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-28 02:09:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 02:09:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 02:09:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 02:09:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 02:09:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 02:09:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 02:09:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 02:09:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 02:09:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-28 02:09:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-28 02:09:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-28 02:09:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-28 02:09:37,046 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:09:37,051 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:09:52,798 INFO L? ?]: Removed 158 outVars from TransFormulas that were not future-live. [2024-11-28 02:09:52,798 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:09:52,818 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:09:52,818 INFO L312 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-28 02:09:52,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:09:52 BoogieIcfgContainer [2024-11-28 02:09:52,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:09:52,822 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:09:52,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:09:52,828 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:09:52,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:09:33" (1/3) ... [2024-11-28 02:09:52,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0f32e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:09:52, skipping insertion in model container [2024-11-28 02:09:52,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:09:36" (2/3) ... [2024-11-28 02:09:52,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0f32e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:09:52, skipping insertion in model container [2024-11-28 02:09:52,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:09:52" (3/3) ... [2024-11-28 02:09:52,833 INFO L128 eAbstractionObserver]: Analyzing ICFG softsign_w8_r1_case_1_safe.c-amalgamation.i [2024-11-28 02:09:52,851 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:09:52,852 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG softsign_w8_r1_case_1_safe.c-amalgamation.i that has 17 procedures, 183 locations, 1 initial locations, 32 loop locations, and 1 error locations. [2024-11-28 02:09:52,924 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:09:52,941 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;@29380772, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:09:52,941 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:09:52,946 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) [2024-11-28 02:09:52,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:09:52,955 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:09:52,956 INFO L218 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] [2024-11-28 02:09:52,956 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:09:52,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:52,962 INFO L85 PathProgramCache]: Analyzing trace with hash -194986837, now seen corresponding path program 1 times [2024-11-28 02:09:52,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:09:52,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976361667] [2024-11-28 02:09:52,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:52,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:09:52,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:09:52,991 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:09:52,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 02:09:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:58,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:09:58,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:58,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:09:58,103 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:09:58,103 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:09:58,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976361667] [2024-11-28 02:09:58,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976361667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:09:58,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:09:58,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:09:58,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684471495] [2024-11-28 02:09:58,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:09:58,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:09:58,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:09:58,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:09:58,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:09:58,133 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) [2024-11-28 02:09:58,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:09:58,177 INFO L93 Difference]: Finished difference Result 274 states and 408 transitions. [2024-11-28 02:09:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:09:58,180 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 [2024-11-28 02:09:58,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:09:58,189 INFO L225 Difference]: With dead ends: 274 [2024-11-28 02:09:58,189 INFO L226 Difference]: Without dead ends: 135 [2024-11-28 02:09:58,193 INFO L434 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 [2024-11-28 02:09:58,198 INFO L435 NwaCegarLoop]: 180 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, 180 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:09:58,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:09:58,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-28 02:09:58,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-11-28 02:09:58,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 122 states have (on average 1.3278688524590163) internal successors, (162), 122 states have internal predecessors, (162), 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) [2024-11-28 02:09:58,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 176 transitions. [2024-11-28 02:09:58,252 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 176 transitions. Word has length 23 [2024-11-28 02:09:58,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:09:58,253 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 176 transitions. [2024-11-28 02:09:58,253 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) [2024-11-28 02:09:58,253 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 176 transitions. [2024-11-28 02:09:58,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:09:58,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:09:58,254 INFO L218 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] [2024-11-28 02:09:58,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-28 02:09:58,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:09:58,455 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:09:58,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:58,456 INFO L85 PathProgramCache]: Analyzing trace with hash -2055470194, now seen corresponding path program 1 times [2024-11-28 02:09:58,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:09:58,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065702782] [2024-11-28 02:09:58,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:58,460 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:09:58,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:09:58,464 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:09:58,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 02:10:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:03,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:10:03,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:10:04,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:10:04,013 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:10:04,013 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:10:04,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065702782] [2024-11-28 02:10:04,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065702782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:04,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:04,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:10:04,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804946378] [2024-11-28 02:10:04,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:04,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:10:04,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:10:04,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:10:04,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:10:04,017 INFO L87 Difference]: Start difference. First operand 135 states and 176 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) [2024-11-28 02:10:04,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:04,408 INFO L93 Difference]: Finished difference Result 146 states and 188 transitions. [2024-11-28 02:10:04,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:10:04,411 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 [2024-11-28 02:10:04,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:04,414 INFO L225 Difference]: With dead ends: 146 [2024-11-28 02:10:04,414 INFO L226 Difference]: Without dead ends: 125 [2024-11-28 02:10:04,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:10:04,416 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 16 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 674 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 [2024-11-28 02:10:04,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 674 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:10:04,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-28 02:10:04,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-28 02:10:04,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 113 states have (on average 1.3185840707964602) internal successors, (149), 113 states have internal predecessors, (149), 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) [2024-11-28 02:10:04,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 161 transitions. [2024-11-28 02:10:04,430 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 161 transitions. Word has length 23 [2024-11-28 02:10:04,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:04,430 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 161 transitions. [2024-11-28 02:10:04,430 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) [2024-11-28 02:10:04,431 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 161 transitions. [2024-11-28 02:10:04,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:10:04,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:04,432 INFO L218 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] [2024-11-28 02:10:04,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-28 02:10:04,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:10:04,633 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:04,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:04,633 INFO L85 PathProgramCache]: Analyzing trace with hash 644284007, now seen corresponding path program 1 times [2024-11-28 02:10:04,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:10:04,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471500164] [2024-11-28 02:10:04,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:04,636 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:10:04,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:10:04,639 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:10:04,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-28 02:10:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:08,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 02:10:08,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:10:12,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:10:12,690 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:10:12,690 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:10:12,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471500164] [2024-11-28 02:10:12,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471500164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:12,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:12,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 02:10:12,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213663316] [2024-11-28 02:10:12,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:12,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:10:12,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:10:12,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:10:12,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:10:12,694 INFO L87 Difference]: Start difference. First operand 125 states and 161 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) [2024-11-28 02:10:16,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:10:20,733 WARN L539 Checker$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] [2024-11-28 02:10:24,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:10:28,754 WARN L539 Checker$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 [] [2024-11-28 02:10:33,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.68s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:10:38,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.91s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:10:42,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:10:47,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:10:52,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.97s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:11:01,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:01,351 INFO L93 Difference]: Finished difference Result 146 states and 187 transitions. [2024-11-28 02:11:01,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:11:01,354 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 [2024-11-28 02:11:01,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:01,356 INFO L225 Difference]: With dead ends: 146 [2024-11-28 02:11:01,356 INFO L226 Difference]: Without dead ends: 134 [2024-11-28 02:11:01,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:11:01,357 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 191 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:01,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 836 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 9 Unknown, 0 Unchecked, 48.6s Time] [2024-11-28 02:11:01,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-28 02:11:01,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 126. [2024-11-28 02:11:01,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 114 states have (on average 1.3157894736842106) internal successors, (150), 114 states have internal predecessors, (150), 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) [2024-11-28 02:11:01,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 162 transitions. [2024-11-28 02:11:01,386 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 162 transitions. Word has length 23 [2024-11-28 02:11:01,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:01,386 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 162 transitions. [2024-11-28 02:11:01,387 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) [2024-11-28 02:11:01,391 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 162 transitions. [2024-11-28 02:11:01,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 02:11:01,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:01,395 INFO L218 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] [2024-11-28 02:11:01,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-28 02:11:01,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:11:01,596 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:01,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:01,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1211100258, now seen corresponding path program 1 times [2024-11-28 02:11:01,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:11:01,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586394691] [2024-11-28 02:11:01,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:01,598 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:11:01,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:11:01,601 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:11:01,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-28 02:11:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:05,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 1910 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 02:11:05,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:48,186 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:11:48,187 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:12:24,531 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:12:24,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586394691] [2024-11-28 02:12:24,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1586394691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:12:24,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1754839618] [2024-11-28 02:12:24,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:12:24,532 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 02:12:24,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 02:12:24,535 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 02:12:24,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-28 02:12:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:12:29,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 1910 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:12:29,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:12:32,063 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 02:12:32,064 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:12:32,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1754839618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:12:32,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:12:32,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2024-11-28 02:12:32,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388898727] [2024-11-28 02:12:32,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:12:32,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:12:32,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:12:32,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:12:32,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:12:32,066 INFO L87 Difference]: Start difference. First operand 126 states and 162 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) [2024-11-28 02:12:32,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:12:32,638 INFO L93 Difference]: Finished difference Result 245 states and 318 transitions. [2024-11-28 02:12:32,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:12:32,638 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 [2024-11-28 02:12:32,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:12:32,640 INFO L225 Difference]: With dead ends: 245 [2024-11-28 02:12:32,640 INFO L226 Difference]: Without dead ends: 134 [2024-11-28 02:12:32,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 137 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 29.4s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:12:32,642 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 3 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 322 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 [2024-11-28 02:12:32,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 322 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:12:32,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-28 02:12:32,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2024-11-28 02:12:32,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 121 states have (on average 1.3057851239669422) internal successors, (158), 121 states have internal predecessors, (158), 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) [2024-11-28 02:12:32,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 172 transitions. [2024-11-28 02:12:32,672 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 172 transitions. Word has length 69 [2024-11-28 02:12:32,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:12:32,673 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 172 transitions. [2024-11-28 02:12:32,673 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) [2024-11-28 02:12:32,673 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 172 transitions. [2024-11-28 02:12:32,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 02:12:32,676 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:12:32,676 INFO L218 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] [2024-11-28 02:12:32,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-28 02:12:32,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-28 02:12:33,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:12:33,078 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:12:33,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:12:33,078 INFO L85 PathProgramCache]: Analyzing trace with hash -793034412, now seen corresponding path program 1 times [2024-11-28 02:12:33,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:12:33,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947500310] [2024-11-28 02:12:33,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:12:33,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:12:33,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:12:33,083 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:12:33,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-28 02:12:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:12:37,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 1913 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 02:12:37,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:18,686 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:18,686 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:13:54,521 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:13:54,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947500310] [2024-11-28 02:13:54,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947500310] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:13:54,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [989113519] [2024-11-28 02:13:54,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:54,522 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 02:13:54,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 02:13:54,525 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 02:13:54,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-28 02:13:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:59,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 1913 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:13:59,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:14:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:14:09,017 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:14:09,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [989113519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:09,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:14:09,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2024-11-28 02:14:09,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971748636] [2024-11-28 02:14:09,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:09,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:14:09,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:14:09,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:14:09,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:14:09,020 INFO L87 Difference]: Start difference. First operand 134 states and 172 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 02:14:11,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:11,482 INFO L93 Difference]: Finished difference Result 264 states and 343 transitions. [2024-11-28 02:14:11,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:14:11,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) Word has length 71 [2024-11-28 02:14:11,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:11,486 INFO L225 Difference]: With dead ends: 264 [2024-11-28 02:14:11,487 INFO L226 Difference]: Without dead ends: 142 [2024-11-28 02:14:11,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 140 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 33.2s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:14:11,488 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 37 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:11,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 607 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 02:14:11,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-28 02:14:11,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 135. [2024-11-28 02:14:11,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 122 states have (on average 1.3032786885245902) internal successors, (159), 122 states have internal predecessors, (159), 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) [2024-11-28 02:14:11,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 173 transitions. [2024-11-28 02:14:11,514 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 173 transitions. Word has length 71 [2024-11-28 02:14:11,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:11,514 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 173 transitions. [2024-11-28 02:14:11,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 02:14:11,515 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 173 transitions. [2024-11-28 02:14:11,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 02:14:11,517 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:11,517 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:14:11,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-28 02:14:11,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-28 02:14:11,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:14:11,918 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:11,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:11,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1219001812, now seen corresponding path program 1 times [2024-11-28 02:14:11,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:14:11,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110967617] [2024-11-28 02:14:11,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:11,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:14:11,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:14:11,923 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:14:11,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-28 02:14:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:17,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 02:14:17,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:14:57,918 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:14:57,919 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:15:31,076 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:15:31,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110967617] [2024-11-28 02:15:31,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110967617] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:15:31,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1737431383] [2024-11-28 02:15:31,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:15:31,076 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 02:15:31,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 02:15:31,078 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 02:15:31,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-28 02:15:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:15:38,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 02:15:38,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:15:59,874 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 02:15:59,875 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:16:21,021 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 02:16:21,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1737431383] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:16:21,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:16:21,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13, 7] total 20 [2024-11-28 02:16:21,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94082927] [2024-11-28 02:16:21,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:21,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:16:21,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:16:21,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:16:21,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-28 02:16:21,023 INFO L87 Difference]: Start difference. First operand 135 states and 173 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 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) [2024-11-28 02:16:25,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:30,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:35,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.93s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:36,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:41,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:41,055 INFO L93 Difference]: Finished difference Result 167 states and 213 transitions. [2024-11-28 02:16:41,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:16:41,058 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 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 79 [2024-11-28 02:16:41,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:41,061 INFO L225 Difference]: With dead ends: 167 [2024-11-28 02:16:41,061 INFO L226 Difference]: Without dead ends: 138 [2024-11-28 02:16:41,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 230 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 39.7s TimeCoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-28 02:16:41,062 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 35 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:41,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 619 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 3 Unknown, 0 Unchecked, 20.0s Time] [2024-11-28 02:16:41,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-28 02:16:41,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 136. [2024-11-28 02:16:41,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 123 states have (on average 1.3008130081300813) internal successors, (160), 123 states have internal predecessors, (160), 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) [2024-11-28 02:16:41,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 174 transitions. [2024-11-28 02:16:41,079 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 174 transitions. Word has length 79 [2024-11-28 02:16:41,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:41,079 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 174 transitions. [2024-11-28 02:16:41,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 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) [2024-11-28 02:16:41,080 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 174 transitions. [2024-11-28 02:16:41,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 02:16:41,081 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:41,081 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:16:41,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-28 02:16:41,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-28 02:16:41,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:16:41,482 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:16:41,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:41,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1447007916, now seen corresponding path program 1 times [2024-11-28 02:16:41,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:16:41,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983395161] [2024-11-28 02:16:41,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:41,484 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:16:41,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:16:41,488 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:16:41,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-28 02:16:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:45,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 02:16:45,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:17:37,229 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:17:37,229 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:18:20,267 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:18:20,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983395161] [2024-11-28 02:18:20,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983395161] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:18:20,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [671988990] [2024-11-28 02:18:20,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:20,268 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 02:18:20,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 02:18:20,270 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 02:18:20,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-28 02:18:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:25,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:18:25,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:18:34,978 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-28 02:18:34,978 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:18:34,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [671988990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:18:34,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:18:34,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-11-28 02:18:34,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072587982] [2024-11-28 02:18:34,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:18:34,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:18:34,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:18:34,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:18:34,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-11-28 02:18:34,981 INFO L87 Difference]: Start difference. First operand 136 states and 174 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) [2024-11-28 02:18:38,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:18:38,290 INFO L93 Difference]: Finished difference Result 143 states and 180 transitions. [2024-11-28 02:18:38,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:18:38,291 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 79 [2024-11-28 02:18:38,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:18:38,293 INFO L225 Difference]: With dead ends: 143 [2024-11-28 02:18:38,293 INFO L226 Difference]: Without dead ends: 125 [2024-11-28 02:18:38,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 157 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 38.3s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:18:38,294 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 14 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:18:38,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 615 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 02:18:38,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-28 02:18:38,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-28 02:18:38,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 113 states have (on average 1.2920353982300885) internal successors, (146), 113 states have internal predecessors, (146), 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) [2024-11-28 02:18:38,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 158 transitions. [2024-11-28 02:18:38,307 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 158 transitions. Word has length 79 [2024-11-28 02:18:38,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:18:38,307 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 158 transitions. [2024-11-28 02:18:38,307 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) [2024-11-28 02:18:38,307 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 158 transitions. [2024-11-28 02:18:38,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 02:18:38,309 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:18:38,309 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:18:38,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-28 02:18:38,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-11-28 02:18:38,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:18:38,710 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:18:38,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:18:38,710 INFO L85 PathProgramCache]: Analyzing trace with hash -141905704, now seen corresponding path program 1 times [2024-11-28 02:18:38,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:18:38,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520790706] [2024-11-28 02:18:38,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:38,712 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:18:38,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:18:38,714 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:18:38,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-28 02:18:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:18:43,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 1937 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 02:18:43,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:19:37,268 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 02:19:37,268 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:20:22,793 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:20:22,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520790706] [2024-11-28 02:20:22,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1520790706] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:20:22,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [688982388] [2024-11-28 02:20:22,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:22,794 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 02:20:22,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 02:20:22,796 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 02:20:22,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08befdf-d524-41e8-9ec2-584e6ddb3e70/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-28 02:20:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:30,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 1937 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 02:20:30,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:21:05,418 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-28 02:21:05,418 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:21:44,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [688982388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:21:44,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:21:44,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 17 [2024-11-28 02:21:44,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594810245] [2024-11-28 02:21:44,814 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:21:44,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 02:21:44,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:21:44,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 02:21:44,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2024-11-28 02:21:44,816 INFO L87 Difference]: Start difference. First operand 125 states and 158 transitions. Second operand has 17 states, 14 states have (on average 7.357142857142857) internal successors, (103), 17 states have internal predecessors, (103), 8 states have call successors, (11), 2 states have call predecessors, (11), 8 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-28 02:21:48,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:21:53,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:21:58,357 WARN L539 Checker$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 [0] [2024-11-28 02:22:03,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:22:08,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:22:13,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.98s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:22:18,421 WARN L539 Checker$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 [0] [2024-11-28 02:22:23,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:22:28,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:22:33,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:22:38,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:22:42,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:22:47,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:22:48,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:23:01,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:23:19,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:23:24,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:23:28,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:23:31,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:24:08,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]