./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/softsign_w16_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_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/softsign_w16_r1_case_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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_deb63532-f98d-4250-a169-743b09e8c5bd/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 0a344901124744d7abcd38ab5b1269f137b617f4cd17873575e5dc84b6d6d48e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:06:58,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:06:58,939 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:06:58,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:06:58,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:06:58,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:06:58,970 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:06:58,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:06:58,971 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:06:58,971 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:06:58,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:06:58,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:06:58,972 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:06:58,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:06:58,972 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:06:58,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:06:58,972 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:06:58,972 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:06:58,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:06:58,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:06:58,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:06:58,973 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:06:58,973 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:06:58,973 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:06:58,973 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:06:58,973 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:06:58,974 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:06:58,974 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:06:58,974 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:06:58,974 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:06:58,974 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:06:58,974 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:06:58,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:06:58,975 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:06:58,975 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:06:58,975 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:06:58,975 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:06:58,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:06:58,975 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:06:58,975 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:06:58,975 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:06:58,976 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:06:58,976 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:06:58,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:06:58,976 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:06:58,976 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:06:58,976 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:06:58,976 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:06:58,977 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_deb63532-f98d-4250-a169-743b09e8c5bd/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 -> 0a344901124744d7abcd38ab5b1269f137b617f4cd17873575e5dc84b6d6d48e [2024-11-28 02:06:59,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:06:59,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:06:59,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:06:59,290 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:06:59,290 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:06:59,291 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/neural-networks/softsign_w16_r1_case_1_safe.c-amalgamation.i [2024-11-28 02:07:02,447 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/data/6caef8715/09144ce3e2af46df957a9a779d831f62/FLAGfc919ad4c [2024-11-28 02:07:03,009 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:03,010 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/sv-benchmarks/c/neural-networks/softsign_w16_r1_case_1_safe.c-amalgamation.i [2024-11-28 02:07:03,085 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/data/6caef8715/09144ce3e2af46df957a9a779d831f62/FLAGfc919ad4c [2024-11-28 02:07:03,109 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/data/6caef8715/09144ce3e2af46df957a9a779d831f62 [2024-11-28 02:07:03,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:03,114 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:03,117 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:03,117 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:03,124 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:03,125 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:03" (1/1) ... [2024-11-28 02:07:03,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79bdc40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:03, skipping insertion in model container [2024-11-28 02:07:03,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:03" (1/1) ... [2024-11-28 02:07:03,246 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:04,718 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_deb63532-f98d-4250-a169-743b09e8c5bd/sv-benchmarks/c/neural-networks/softsign_w16_r1_case_1_safe.c-amalgamation.i[72243,72256] [2024-11-28 02:07:05,255 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-28 02:07:05,269 INFO L158 Benchmark]: Toolchain (without parser) took 2153.75ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 60.8MB in the end (delta: 53.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-28 02:07:05,269 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 142.6MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:05,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2149.63ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 60.8MB in the end (delta: 52.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-28 02:07:05,274 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 142.6MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2149.63ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 60.8MB in the end (delta: 52.9MB). Peak memory consumption was 50.3MB. 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_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/softsign_w16_r1_case_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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_deb63532-f98d-4250-a169-743b09e8c5bd/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 0a344901124744d7abcd38ab5b1269f137b617f4cd17873575e5dc84b6d6d48e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:07:07,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:07:08,075 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 02:07:08,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:07:08,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:07:08,117 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:07:08,118 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:07:08,118 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:07:08,119 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:07:08,119 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:07:08,119 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:07:08,119 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:07:08,119 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:07:08,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:07:08,120 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:07:08,120 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:07:08,120 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:07:08,120 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:07:08,120 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:07:08,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:07:08,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:07:08,121 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:07:08,122 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:07:08,122 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:07:08,122 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:07:08,122 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:07:08,122 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:07:08,122 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:07:08,123 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:07:08,123 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:07:08,123 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:07:08,123 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:08,123 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:08,123 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:08,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:08,124 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:07:08,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:08,124 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:08,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:08,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:08,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:07:08,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:07:08,125 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:07:08,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:07:08,125 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:07:08,125 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:07:08,125 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:07:08,125 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:07:08,125 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:07:08,126 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:07:08,126 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_deb63532-f98d-4250-a169-743b09e8c5bd/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 -> 0a344901124744d7abcd38ab5b1269f137b617f4cd17873575e5dc84b6d6d48e [2024-11-28 02:07:08,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:07:08,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:07:08,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:07:08,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:07:08,511 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:07:08,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/neural-networks/softsign_w16_r1_case_1_safe.c-amalgamation.i [2024-11-28 02:07:11,548 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/data/357fe1601/0430b3ae7985418d9ed12e438bb47317/FLAGd70038b4f [2024-11-28 02:07:12,274 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:12,274 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/sv-benchmarks/c/neural-networks/softsign_w16_r1_case_1_safe.c-amalgamation.i [2024-11-28 02:07:12,332 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/data/357fe1601/0430b3ae7985418d9ed12e438bb47317/FLAGd70038b4f [2024-11-28 02:07:12,361 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/data/357fe1601/0430b3ae7985418d9ed12e438bb47317 [2024-11-28 02:07:12,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:12,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:12,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:12,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:12,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:12,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:12" (1/1) ... [2024-11-28 02:07:12,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e3af50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:12, skipping insertion in model container [2024-11-28 02:07:12,382 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:12" (1/1) ... [2024-11-28 02:07:12,493 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:13,966 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_deb63532-f98d-4250-a169-743b09e8c5bd/sv-benchmarks/c/neural-networks/softsign_w16_r1_case_1_safe.c-amalgamation.i[72243,72256] [2024-11-28 02:07:14,480 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 02:07:14,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:14,544 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:07:14,601 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_deb63532-f98d-4250-a169-743b09e8c5bd/sv-benchmarks/c/neural-networks/softsign_w16_r1_case_1_safe.c-amalgamation.i[72243,72256] [2024-11-28 02:07:14,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:15,146 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:07:15,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:15 WrapperNode [2024-11-28 02:07:15,147 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:15,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:15,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:07:15,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:07:15,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:15" (1/1) ... [2024-11-28 02:07:15,228 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:15" (1/1) ... [2024-11-28 02:07:15,336 INFO L138 Inliner]: procedures = 780, calls = 2865, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 1048 [2024-11-28 02:07:15,337 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:15,338 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:07:15,338 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:07:15,338 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:07:15,361 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:15" (1/1) ... [2024-11-28 02:07:15,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:15" (1/1) ... [2024-11-28 02:07:15,393 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:15" (1/1) ... [2024-11-28 02:07:15,444 INFO L175 MemorySlicer]: Split 745 memory accesses to 12 slices as follows [2, 7, 79, 2, 11, 12, 67, 9, 20, 515, 10, 11]. 69 percent of accesses are in the largest equivalence class. The 147 initializations are split as follows [2, 7, 48, 2, 8, 8, 32, 8, 16, 0, 8, 8]. The 548 writes are split as follows [0, 0, 14, 0, 0, 0, 17, 0, 3, 514, 0, 0]. [2024-11-28 02:07:15,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:15" (1/1) ... [2024-11-28 02:07:15,445 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:15" (1/1) ... [2024-11-28 02:07:15,529 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:15" (1/1) ... [2024-11-28 02:07:15,536 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:15" (1/1) ... [2024-11-28 02:07:15,551 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:15" (1/1) ... [2024-11-28 02:07:15,609 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:15" (1/1) ... [2024-11-28 02:07:15,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:15" (1/1) ... [2024-11-28 02:07:15,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:07:15,641 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:07:15,641 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:07:15,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:07:15,642 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:15" (1/1) ... [2024-11-28 02:07:15,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:15,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:15,686 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:07:15,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:07:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-28 02:07:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-28 02:07:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-28 02:07:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-28 02:07:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-28 02:07:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-28 02:07:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-28 02:07:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-28 02:07:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-28 02:07:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-28 02:07:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-28 02:07:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-28 02:07:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNN [2024-11-28 02:07:15,726 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNN [2024-11-28 02:07:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-28 02:07:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-28 02:07:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2 [2024-11-28 02:07:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3 [2024-11-28 02:07:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4 [2024-11-28 02:07:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5 [2024-11-28 02:07:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6 [2024-11-28 02:07:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7 [2024-11-28 02:07:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8 [2024-11-28 02:07:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9 [2024-11-28 02:07:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10 [2024-11-28 02:07:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#11 [2024-11-28 02:07:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:07:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:07:15,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:07:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 02:07:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 02:07:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 02:07:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-28 02:07:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-28 02:07:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-28 02:07:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-28 02:07:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-28 02:07:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-28 02:07:15,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-28 02:07:15,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-11-28 02:07:15,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-11-28 02:07:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 02:07:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 02:07:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 02:07:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-28 02:07:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-28 02:07:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-28 02:07:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-28 02:07:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-28 02:07:15,735 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-28 02:07:15,735 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-28 02:07:15,735 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-11-28 02:07:15,735 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-11-28 02:07:15,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:07:15,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:07:15,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:07:15,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:07:15,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 02:07:15,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 02:07:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 02:07:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 02:07:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 02:07:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-28 02:07:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-28 02:07:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-28 02:07:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-28 02:07:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_affine_matmul [2024-11-28 02:07:15,736 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_affine_matmul [2024-11-28 02:07:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-28 02:07:15,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-28 02:07:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:07:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:07:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:07:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 02:07:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-28 02:07:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-28 02:07:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-28 02:07:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-28 02:07:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-28 02:07:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-28 02:07:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-28 02:07:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-28 02:07:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-28 02:07:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-28 02:07:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-28 02:07:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-28 02:07:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-28 02:07:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-28 02:07:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-28 02:07:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-28 02:07:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-28 02:07:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-11-28 02:07:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-11-28 02:07:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2024-11-28 02:07:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2024-11-28 02:07:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-28 02:07:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-28 02:07:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-28 02:07:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-28 02:07:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-28 02:07:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-28 02:07:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-28 02:07:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-11-28 02:07:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-11-28 02:07:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-11-28 02:07:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-11-28 02:07:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2024-11-28 02:07:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNNcell [2024-11-28 02:07:15,743 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNNcell [2024-11-28 02:07:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 02:07:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 02:07:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 02:07:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-28 02:07:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-28 02:07:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-28 02:07:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-28 02:07:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-28 02:07:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-28 02:07:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-28 02:07:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-28 02:07:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-28 02:07:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-28 02:07:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-28 02:07:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-28 02:07:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-28 02:07:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-28 02:07:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-28 02:07:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-28 02:07:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-28 02:07:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-28 02:07:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-28 02:07:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-28 02:07:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-28 02:07:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 02:07:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 02:07:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 02:07:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 02:07:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 02:07:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 02:07:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 02:07:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 02:07:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-28 02:07:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-28 02:07:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-28 02:07:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-28 02:07:16,289 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:07:16,293 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:07:38,157 INFO L? ?]: Removed 166 outVars from TransFormulas that were not future-live. [2024-11-28 02:07:38,157 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:07:38,177 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:07:38,179 INFO L312 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-28 02:07:38,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:38 BoogieIcfgContainer [2024-11-28 02:07:38,180 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:07:38,182 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:07:38,182 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:07:38,188 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:07:38,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:07:12" (1/3) ... [2024-11-28 02:07:38,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b4e9a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:38, skipping insertion in model container [2024-11-28 02:07:38,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:15" (2/3) ... [2024-11-28 02:07:38,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b4e9a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:38, skipping insertion in model container [2024-11-28 02:07:38,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:38" (3/3) ... [2024-11-28 02:07:38,193 INFO L128 eAbstractionObserver]: Analyzing ICFG softsign_w16_r1_case_1_safe.c-amalgamation.i [2024-11-28 02:07:38,210 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:07:38,212 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG softsign_w16_r1_case_1_safe.c-amalgamation.i that has 17 procedures, 195 locations, 1 initial locations, 32 loop locations, and 1 error locations. [2024-11-28 02:07:38,298 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:38,318 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;@2ee41e69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:38,318 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:07:38,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 137 states have (on average 1.532846715328467) internal successors, (210), 138 states have internal predecessors, (210), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 02:07:38,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-28 02:07:38,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:38,336 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:38,336 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:38,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:38,344 INFO L85 PathProgramCache]: Analyzing trace with hash -796139321, now seen corresponding path program 1 times [2024-11-28 02:07:38,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:07:38,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550813091] [2024-11-28 02:07:38,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:38,381 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 02:07:38,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:07:38,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:07:38,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:08:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:17,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 5759 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:08:17,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:17,668 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 02:08:17,668 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:08:17,669 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:17,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550813091] [2024-11-28 02:08:17,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550813091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:17,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:17,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:08:17,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970236914] [2024-11-28 02:08:17,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:17,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:08:17,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:17,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:08:17,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:08:17,702 INFO L87 Difference]: Start difference. First operand has 151 states, 137 states have (on average 1.532846715328467) internal successors, (210), 138 states have internal predecessors, (210), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:08:17,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:17,749 INFO L93 Difference]: Finished difference Result 298 states and 448 transitions. [2024-11-28 02:08:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:08:17,751 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-28 02:08:17,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:17,759 INFO L225 Difference]: With dead ends: 298 [2024-11-28 02:08:17,759 INFO L226 Difference]: Without dead ends: 147 [2024-11-28 02:08:17,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:08:17,766 INFO L435 NwaCegarLoop]: 196 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, 196 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 02:08:17,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:08:17,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-28 02:08:17,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-28 02:08:17,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 134 states have (on average 1.328358208955224) internal successors, (178), 134 states have internal predecessors, (178), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 02:08:17,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 192 transitions. [2024-11-28 02:08:17,815 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 192 transitions. Word has length 35 [2024-11-28 02:08:17,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:17,816 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 192 transitions. [2024-11-28 02:08:17,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:08:17,816 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 192 transitions. [2024-11-28 02:08:17,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-28 02:08:17,817 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:17,818 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:17,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:08:18,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:08:18,019 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:18,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:18,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1555908906, now seen corresponding path program 1 times [2024-11-28 02:08:18,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:08:18,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532100594] [2024-11-28 02:08:18,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:18,029 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 02:08:18,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:08:18,032 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:08:18,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:08:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:57,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 5759 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:08:57,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:57,287 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 02:08:57,289 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:08:57,289 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:08:57,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532100594] [2024-11-28 02:08:57,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532100594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:57,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:57,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:08:57,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762786730] [2024-11-28 02:08:57,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:57,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:08:57,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:08:57,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:08:57,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:08:57,294 INFO L87 Difference]: Start difference. First operand 147 states and 192 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:09:01,329 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 [] [2024-11-28 02:09:01,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:09:01,415 INFO L93 Difference]: Finished difference Result 273 states and 356 transitions. [2024-11-28 02:09:01,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:09:01,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-28 02:09:01,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:09:01,418 INFO L225 Difference]: With dead ends: 273 [2024-11-28 02:09:01,418 INFO L226 Difference]: Without dead ends: 147 [2024-11-28 02:09:01,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:09:01,421 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 0 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:09:01,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 379 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 02:09:01,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-28 02:09:01,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-28 02:09:01,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 134 states have (on average 1.3208955223880596) internal successors, (177), 134 states have internal predecessors, (177), 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 02:09:01,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 191 transitions. [2024-11-28 02:09:01,437 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 191 transitions. Word has length 35 [2024-11-28 02:09:01,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:09:01,437 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 191 transitions. [2024-11-28 02:09:01,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:09:01,438 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 191 transitions. [2024-11-28 02:09:01,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-28 02:09:01,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:09:01,439 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:09:01,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:09:01,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:09:01,640 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:09:01,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:01,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1459194712, now seen corresponding path program 1 times [2024-11-28 02:09:01,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:09:01,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557113904] [2024-11-28 02:09:01,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:01,646 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 02:09:01,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:09:01,648 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:09:01,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:09:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:41,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 5761 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:09:41,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:42,344 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 02:09:42,344 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:09:42,345 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:09:42,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557113904] [2024-11-28 02:09:42,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557113904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:09:42,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:09:42,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:09:42,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35840472] [2024-11-28 02:09:42,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:09:42,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:09:42,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:09:42,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:09:42,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:09:42,347 INFO L87 Difference]: Start difference. First operand 147 states and 191 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:09:42,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:09:42,564 INFO L93 Difference]: Finished difference Result 158 states and 203 transitions. [2024-11-28 02:09:42,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:09:42,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-28 02:09:42,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:09:42,570 INFO L225 Difference]: With dead ends: 158 [2024-11-28 02:09:42,570 INFO L226 Difference]: Without dead ends: 137 [2024-11-28 02:09:42,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:09:42,571 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 16 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:09:42,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 734 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:09:42,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-28 02:09:42,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-11-28 02:09:42,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 125 states have (on average 1.312) internal successors, (164), 125 states have internal predecessors, (164), 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 02:09:42,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 176 transitions. [2024-11-28 02:09:42,582 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 176 transitions. Word has length 35 [2024-11-28 02:09:42,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:09:42,582 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 176 transitions. [2024-11-28 02:09:42,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:09:42,583 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 176 transitions. [2024-11-28 02:09:42,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-28 02:09:42,583 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:09:42,584 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:09:42,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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)] Forceful destruction successful, exit code 0 [2024-11-28 02:09:42,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:09:42,784 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:09:42,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:42,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1240559489, now seen corresponding path program 1 times [2024-11-28 02:09:42,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:09:42,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403438557] [2024-11-28 02:09:42,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:42,789 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 02:09:42,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:09:42,791 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:09:42,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:10:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:23,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 5761 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 02:10:23,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:10:26,376 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 02:10:26,377 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:10:26,377 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:10:26,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1403438557] [2024-11-28 02:10:26,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1403438557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:26,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:26,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 02:10:26,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522333604] [2024-11-28 02:10:26,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:26,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:10:26,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:10:26,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:10:26,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:10:26,380 INFO L87 Difference]: Start difference. First operand 137 states and 176 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:10:30,413 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 02:10:34,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:10:38,448 WARN L539 Checker$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 02:10:42,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:10:46,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:10:52,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:10:56,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.56s 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 02:11:01,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:11:05,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.51s 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 02:11:07,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:07,927 INFO L93 Difference]: Finished difference Result 158 states and 202 transitions. [2024-11-28 02:11:07,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:11:07,930 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-28 02:11:07,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:07,932 INFO L225 Difference]: With dead ends: 158 [2024-11-28 02:11:07,932 INFO L226 Difference]: Without dead ends: 146 [2024-11-28 02:11:07,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:11:07,933 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 182 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:07,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 766 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 9 Unknown, 0 Unchecked, 41.5s Time] [2024-11-28 02:11:07,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-28 02:11:07,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 138. [2024-11-28 02:11:07,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 126 states have (on average 1.3095238095238095) internal successors, (165), 126 states have internal predecessors, (165), 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 02:11:07,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 177 transitions. [2024-11-28 02:11:07,955 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 177 transitions. Word has length 35 [2024-11-28 02:11:07,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:07,955 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 177 transitions. [2024-11-28 02:11:07,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:11:07,956 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 177 transitions. [2024-11-28 02:11:07,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 02:11:07,958 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:07,959 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:08,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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)] Ended with exit code 0 [2024-11-28 02:11:08,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:11:08,160 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:08,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:08,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1022372320, now seen corresponding path program 1 times [2024-11-28 02:11:08,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:11:08,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140921417] [2024-11-28 02:11:08,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:08,164 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 02:11:08,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:11:08,166 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:11:08,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-28 02:11:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:50,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 5950 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 02:11:50,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:59,920 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 02:11:59,921 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:12:08,879 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:12:08,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140921417] [2024-11-28 02:12:08,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140921417] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:12:08,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2050101916] [2024-11-28 02:12:08,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:12:08,880 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 02:12:08,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 02:12:08,885 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 02:12:08,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-28 02:12:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:12:52,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 5950 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:12:52,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:12:52,640 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 02:12:52,641 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:12:52,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2050101916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:12:52,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:12:52,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2024-11-28 02:12:52,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963988379] [2024-11-28 02:12:52,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:12:52,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:12:52,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:12:52,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:12:52,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:12:52,644 INFO L87 Difference]: Start difference. First operand 138 states and 177 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 02:12:52,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:12:52,818 INFO L93 Difference]: Finished difference Result 257 states and 333 transitions. [2024-11-28 02:12:52,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:12:52,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 81 [2024-11-28 02:12:52,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:12:52,820 INFO L225 Difference]: With dead ends: 257 [2024-11-28 02:12:52,821 INFO L226 Difference]: Without dead ends: 146 [2024-11-28 02:12:52,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 161 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:12:52,823 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 3 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:12:52,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 352 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:12:52,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-28 02:12:52,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-11-28 02:12:52,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 133 states have (on average 1.300751879699248) internal successors, (173), 133 states have internal predecessors, (173), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 02:12:52,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 187 transitions. [2024-11-28 02:12:52,839 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 187 transitions. Word has length 81 [2024-11-28 02:12:52,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:12:52,840 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 187 transitions. [2024-11-28 02:12:52,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 02:12:52,840 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 187 transitions. [2024-11-28 02:12:52,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-28 02:12:52,843 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:12:52,844 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:12:52,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-28 02:12:53,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-28 02:12:53,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 02:12:53,245 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:12:53,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:12:53,245 INFO L85 PathProgramCache]: Analyzing trace with hash -208377770, now seen corresponding path program 1 times [2024-11-28 02:12:53,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:12:53,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422271382] [2024-11-28 02:12:53,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:12:53,248 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 02:12:53,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:12:53,250 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:12:53,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 (8)] Waiting until timeout for monitored process [2024-11-28 02:13:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:37,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 5953 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 02:13:37,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:47,216 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 02:13:47,216 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:13:55,215 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:13:55,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422271382] [2024-11-28 02:13:55,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422271382] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:13:55,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1455363776] [2024-11-28 02:13:55,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:55,216 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 02:13:55,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 02:13:55,218 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 02:13:55,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-28 02:14:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:37,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 5953 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:14:37,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:14:39,041 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 02:14:39,041 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:14:39,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1455363776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:39,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:14:39,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2024-11-28 02:14:39,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669680699] [2024-11-28 02:14:39,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:39,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:14:39,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:14:39,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:14:39,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:14:39,044 INFO L87 Difference]: Start difference. First operand 146 states and 187 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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 02:14:39,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:39,647 INFO L93 Difference]: Finished difference Result 276 states and 358 transitions. [2024-11-28 02:14:39,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:14:39,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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 83 [2024-11-28 02:14:39,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:39,650 INFO L225 Difference]: With dead ends: 276 [2024-11-28 02:14:39,650 INFO L226 Difference]: Without dead ends: 154 [2024-11-28 02:14:39,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 164 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:14:39,652 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 28 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:39,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 826 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:14:39,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-28 02:14:39,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 147. [2024-11-28 02:14:39,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 134 states have (on average 1.2985074626865671) internal successors, (174), 134 states have internal predecessors, (174), 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 02:14:39,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 188 transitions. [2024-11-28 02:14:39,670 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 188 transitions. Word has length 83 [2024-11-28 02:14:39,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:39,670 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 188 transitions. [2024-11-28 02:14:39,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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 02:14:39,671 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 188 transitions. [2024-11-28 02:14:39,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 02:14:39,673 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:39,673 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:14:39,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2024-11-28 02:14:39,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 (8)] Ended with exit code 0 [2024-11-28 02:14:40,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:14:40,074 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:40,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:40,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1130201386, now seen corresponding path program 1 times [2024-11-28 02:14:40,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:14:40,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821019319] [2024-11-28 02:14:40,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:40,079 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 02:14:40,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:14:40,080 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:14:40,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 (10)] Waiting until timeout for monitored process [2024-11-28 02:15:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:15:23,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 5965 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 02:15:23,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:15:33,574 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 02:15:33,575 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:15:41,871 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:15:41,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821019319] [2024-11-28 02:15:41,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [821019319] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:15:41,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [408444051] [2024-11-28 02:15:41,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:15:41,872 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 02:15:41,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 02:15:41,876 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 02:15:41,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-28 02:16:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:36,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 5965 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 02:16:36,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:16:41,214 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 02:16:41,214 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:16:46,040 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 02:16:46,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [408444051] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:16:46,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:16:46,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13, 7] total 20 [2024-11-28 02:16:46,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678383308] [2024-11-28 02:16:46,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:46,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:16:46,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:16:46,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:16:46,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-28 02:16:46,043 INFO L87 Difference]: Start difference. First operand 147 states and 188 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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 02:16:50,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:55,153 WARN L539 Checker$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 02:17:00,177 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 [] [2024-11-28 02:17:02,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:17:02,606 INFO L93 Difference]: Finished difference Result 179 states and 228 transitions. [2024-11-28 02:17:02,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:17:02,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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 91 [2024-11-28 02:17:02,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:17:02,613 INFO L225 Difference]: With dead ends: 179 [2024-11-28 02:17:02,613 INFO L226 Difference]: Without dead ends: 150 [2024-11-28 02:17:02,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 266 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-28 02:17:02,615 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 29 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:17:02,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 542 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 3 Unknown, 0 Unchecked, 16.5s Time] [2024-11-28 02:17:02,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-28 02:17:02,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2024-11-28 02:17:02,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 135 states have (on average 1.2962962962962963) internal successors, (175), 135 states have internal predecessors, (175), 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 02:17:02,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 189 transitions. [2024-11-28 02:17:02,633 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 189 transitions. Word has length 91 [2024-11-28 02:17:02,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:17:02,634 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 189 transitions. [2024-11-28 02:17:02,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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 02:17:02,634 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 189 transitions. [2024-11-28 02:17:02,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 02:17:02,636 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:17:02,636 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:02,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-28 02:17:02,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 (10)] Ended with exit code 0 [2024-11-28 02:17:03,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:17:03,037 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:17:03,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:03,038 INFO L85 PathProgramCache]: Analyzing trace with hash 498756182, now seen corresponding path program 1 times [2024-11-28 02:17:03,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:17:03,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1477749893] [2024-11-28 02:17:03,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:03,041 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 02:17:03,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:17:03,043 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:17:03,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 (12)] Waiting until timeout for monitored process [2024-11-28 02:17:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:47,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 5965 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 02:17:47,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:18:05,676 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 02:18:05,676 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:18:19,728 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:18:19,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1477749893] [2024-11-28 02:18:19,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1477749893] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:18:19,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [135153990] [2024-11-28 02:18:19,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:18:19,729 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 02:18:19,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 02:18:19,731 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 02:18:19,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-28 02:19:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:19:07,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 5965 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:19:07,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:19:11,108 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 02:19:11,108 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:19:11,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [135153990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:19:11,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:19:11,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-11-28 02:19:11,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716082438] [2024-11-28 02:19:11,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:19:11,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:19:11,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:19:11,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:19:11,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-11-28 02:19:11,111 INFO L87 Difference]: Start difference. First operand 148 states and 189 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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 02:19:12,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:19:12,390 INFO L93 Difference]: Finished difference Result 155 states and 195 transitions. [2024-11-28 02:19:12,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:19:12,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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 91 [2024-11-28 02:19:12,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:19:12,393 INFO L225 Difference]: With dead ends: 155 [2024-11-28 02:19:12,393 INFO L226 Difference]: Without dead ends: 137 [2024-11-28 02:19:12,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 181 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:19:12,395 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 14 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:19:12,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 675 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:19:12,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-28 02:19:12,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-11-28 02:19:12,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 125 states have (on average 1.288) internal successors, (161), 125 states have internal predecessors, (161), 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 02:19:12,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2024-11-28 02:19:12,411 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 91 [2024-11-28 02:19:12,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:19:12,412 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2024-11-28 02:19:12,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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 02:19:12,412 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2024-11-28 02:19:12,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 02:19:12,414 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:19:12,414 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:19:12,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-28 02:19:12,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 (12)] Ended with exit code 0 [2024-11-28 02:19:12,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:19:12,815 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:19:12,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:19:12,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1032353370, now seen corresponding path program 1 times [2024-11-28 02:19:12,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:19:12,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427966171] [2024-11-28 02:19:12,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:19:12,819 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 02:19:12,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:19:12,822 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 02:19:12,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/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 (14)] Waiting until timeout for monitored process [2024-11-28 02:19:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:19:58,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 5977 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 02:19:58,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:20:16,044 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 02:20:16,045 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:20:31,348 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:20:31,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427966171] [2024-11-28 02:20:31,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1427966171] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:20:31,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2102314198] [2024-11-28 02:20:31,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:31,349 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 02:20:31,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 02:20:31,353 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 02:20:31,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb63532-f98d-4250-a169-743b09e8c5bd/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-28 02:21:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:30,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 5977 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 02:21:30,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:21:40,982 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 02:21:40,982 INFO L312 TraceCheckSpWp]: Computing backward predicates...