./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/softsign_w16_r2_case_1_unsafe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/softsign_w16_r2_case_1_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC --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 55dde6cae6bae8f371cafd710003d3e7c478788c7c202340fd79af1b0988c8c1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:40:02,463 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:40:02,561 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:40:02,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:40:02,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:40:02,598 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:40:02,599 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:40:02,599 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:40:02,599 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:40:02,600 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:40:02,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:40:02,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:40:02,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:40:02,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:40:02,601 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:40:02,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:40:02,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:40:02,601 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:40:02,602 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:40:02,602 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:40:02,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:40:02,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:40:02,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:40:02,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:40:02,603 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:40:02,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:40:02,603 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:40:02,603 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:40:02,603 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:40:02,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:40:02,603 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:40:02,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:40:02,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:40:02,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:40:02,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:40:02,604 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:40:02,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:40:02,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:40:02,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:40:02,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:40:02,605 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:40:02,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:40:02,605 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:40:02,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:40:02,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:40:02,606 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:40:02,606 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:40:02,606 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:40:02,606 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_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC 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 -> 55dde6cae6bae8f371cafd710003d3e7c478788c7c202340fd79af1b0988c8c1 [2024-11-23 23:40:02,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:40:02,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:40:02,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:40:02,977 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:40:02,977 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:40:02,978 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/neural-networks/softsign_w16_r2_case_1_unsafe.c-amalgamation.i [2024-11-23 23:40:06,467 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/data/068f148b4/d7b4741553d749889f423e67c4813819/FLAGea89842c4 [2024-11-23 23:40:07,138 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:40:07,141 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/sv-benchmarks/c/neural-networks/softsign_w16_r2_case_1_unsafe.c-amalgamation.i [2024-11-23 23:40:07,201 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/data/068f148b4/d7b4741553d749889f423e67c4813819/FLAGea89842c4 [2024-11-23 23:40:07,229 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/data/068f148b4/d7b4741553d749889f423e67c4813819 [2024-11-23 23:40:07,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:40:07,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:40:07,237 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:40:07,237 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:40:07,245 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:40:07,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:40:07" (1/1) ... [2024-11-23 23:40:07,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a59da88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:07, skipping insertion in model container [2024-11-23 23:40:07,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:40:07" (1/1) ... [2024-11-23 23:40:07,363 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:40:08,841 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_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/sv-benchmarks/c/neural-networks/softsign_w16_r2_case_1_unsafe.c-amalgamation.i[72245,72258] [2024-11-23 23:40:09,397 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-23 23:40:09,411 INFO L158 Benchmark]: Toolchain (without parser) took 2170.93ms. Allocated memory is still 117.4MB. Free memory was 87.0MB in the beginning and 81.7MB in the end (delta: 5.3MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. [2024-11-23 23:40:09,415 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:40:09,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2167.96ms. Allocated memory is still 117.4MB. Free memory was 87.0MB in the beginning and 81.7MB in the end (delta: 5.3MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. [2024-11-23 23:40:09,417 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2167.96ms. Allocated memory is still 117.4MB. Free memory was 87.0MB in the beginning and 81.7MB in the end (delta: 5.3MB). Peak memory consumption was 61.0MB. 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_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/softsign_w16_r2_case_1_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC --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 55dde6cae6bae8f371cafd710003d3e7c478788c7c202340fd79af1b0988c8c1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:40:12,514 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:40:12,641 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 23:40:12,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:40:12,649 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:40:12,705 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:40:12,706 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:40:12,706 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:40:12,707 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:40:12,707 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:40:12,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:40:12,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:40:12,709 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:40:12,710 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:40:12,710 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:40:12,711 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:40:12,711 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:40:12,711 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:40:12,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:40:12,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:40:12,711 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:40:12,711 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:40:12,712 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:40:12,712 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 23:40:12,712 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 23:40:12,712 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 23:40:12,712 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:40:12,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:40:12,712 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:40:12,712 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:40:12,712 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:40:12,713 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:40:12,713 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:40:12,713 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:40:12,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:40:12,713 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:40:12,713 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:40:12,713 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:40:12,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:40:12,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:40:12,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:40:12,717 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:40:12,717 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:40:12,717 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:40:12,717 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 23:40:12,717 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 23:40:12,718 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:40:12,718 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:40:12,718 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:40:12,718 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:40:12,718 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_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC 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 -> 55dde6cae6bae8f371cafd710003d3e7c478788c7c202340fd79af1b0988c8c1 [2024-11-23 23:40:13,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:40:13,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:40:13,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:40:13,160 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:40:13,161 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:40:13,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/neural-networks/softsign_w16_r2_case_1_unsafe.c-amalgamation.i [2024-11-23 23:40:16,929 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/data/cd353b9e2/02aeaba62ee84c65b7be2db724cb9c26/FLAGe7cf1b586 [2024-11-23 23:40:17,474 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:40:17,476 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/sv-benchmarks/c/neural-networks/softsign_w16_r2_case_1_unsafe.c-amalgamation.i [2024-11-23 23:40:17,537 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/data/cd353b9e2/02aeaba62ee84c65b7be2db724cb9c26/FLAGe7cf1b586 [2024-11-23 23:40:17,561 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/data/cd353b9e2/02aeaba62ee84c65b7be2db724cb9c26 [2024-11-23 23:40:17,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:40:17,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:40:17,569 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:40:17,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:40:17,575 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:40:17,576 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:40:17" (1/1) ... [2024-11-23 23:40:17,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a26f808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:17, skipping insertion in model container [2024-11-23 23:40:17,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:40:17" (1/1) ... [2024-11-23 23:40:17,681 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:40:19,147 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_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/sv-benchmarks/c/neural-networks/softsign_w16_r2_case_1_unsafe.c-amalgamation.i[72245,72258] [2024-11-23 23:40:19,830 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:40:19,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:40:19,904 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:40:20,001 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_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/sv-benchmarks/c/neural-networks/softsign_w16_r2_case_1_unsafe.c-amalgamation.i[72245,72258] [2024-11-23 23:40:20,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:40:20,874 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:40:20,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:20 WrapperNode [2024-11-23 23:40:20,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:40:20,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:40:20,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:40:20,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:40:20,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:20" (1/1) ... [2024-11-23 23:40:20,987 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:20" (1/1) ... [2024-11-23 23:40:21,118 INFO L138 Inliner]: procedures = 780, calls = 2897, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 1080 [2024-11-23 23:40:21,118 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:40:21,119 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:40:21,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:40:21,119 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:40:21,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:20" (1/1) ... [2024-11-23 23:40:21,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:20" (1/1) ... [2024-11-23 23:40:21,155 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:20" (1/1) ... [2024-11-23 23:40:21,211 INFO L175 MemorySlicer]: Split 777 memory accesses to 12 slices as follows [79, 2, 7, 83, 2, 9, 11, 10, 515, 36, 11, 12]. 66 percent of accesses are in the largest equivalence class. The 179 initializations are split as follows [48, 2, 7, 48, 2, 8, 8, 8, 0, 32, 8, 8]. The 548 writes are split as follows [14, 0, 0, 17, 0, 0, 0, 0, 514, 3, 0, 0]. [2024-11-23 23:40:21,212 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:20" (1/1) ... [2024-11-23 23:40:21,212 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:20" (1/1) ... [2024-11-23 23:40:21,280 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:20" (1/1) ... [2024-11-23 23:40:21,284 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:20" (1/1) ... [2024-11-23 23:40:21,292 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:20" (1/1) ... [2024-11-23 23:40:21,305 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:20" (1/1) ... [2024-11-23 23:40:21,311 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:20" (1/1) ... [2024-11-23 23:40:21,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:40:21,349 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:40:21,352 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:40:21,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:40:21,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:20" (1/1) ... [2024-11-23 23:40:21,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:40:21,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:40:21,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:40:21,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:40:21,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-23 23:40:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-23 23:40:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-23 23:40:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-23 23:40:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-23 23:40:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-23 23:40:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-23 23:40:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-23 23:40:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-23 23:40:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-23 23:40:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-23 23:40:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-23 23:40:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNN [2024-11-23 23:40:21,441 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNN [2024-11-23 23:40:21,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-23 23:40:21,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-23 23:40:21,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2 [2024-11-23 23:40:21,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3 [2024-11-23 23:40:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4 [2024-11-23 23:40:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5 [2024-11-23 23:40:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6 [2024-11-23 23:40:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7 [2024-11-23 23:40:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8 [2024-11-23 23:40:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9 [2024-11-23 23:40:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10 [2024-11-23 23:40:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#11 [2024-11-23 23:40:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:40:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:40:21,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:40:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-23 23:40:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-23 23:40:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-23 23:40:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-23 23:40:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-23 23:40:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-23 23:40:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-23 23:40:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-23 23:40:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-23 23:40:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-23 23:40:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-11-23 23:40:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-11-23 23:40:21,448 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-23 23:40:21,448 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-23 23:40:21,448 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-23 23:40:21,448 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-23 23:40:21,448 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-23 23:40:21,448 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-23 23:40:21,448 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-23 23:40:21,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-23 23:40:21,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-23 23:40:21,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-23 23:40:21,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-11-23 23:40:21,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-11-23 23:40:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 23:40:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 23:40:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 23:40:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 23:40:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 23:40:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 23:40:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 23:40:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-23 23:40:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-23 23:40:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-23 23:40:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-23 23:40:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-23 23:40:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-23 23:40:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_affine_matmul [2024-11-23 23:40:21,449 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_affine_matmul [2024-11-23 23:40:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-23 23:40:21,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-23 23:40:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 23:40:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 23:40:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-23 23:40:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-23 23:40:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-23 23:40:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-23 23:40:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-23 23:40:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-23 23:40:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-23 23:40:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-23 23:40:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-23 23:40:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-23 23:40:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-23 23:40:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-23 23:40:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-23 23:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-23 23:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-23 23:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-23 23:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-23 23:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-23 23:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-23 23:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-11-23 23:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-11-23 23:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2024-11-23 23:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2024-11-23 23:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-23 23:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-23 23:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-23 23:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-23 23:40:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNNcell [2024-11-23 23:40:21,455 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNNcell [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-23 23:40:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 23:40:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 23:40:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-23 23:40:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-23 23:40:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-23 23:40:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-23 23:40:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-23 23:40:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-23 23:40:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-23 23:40:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-23 23:40:21,919 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:40:21,923 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:40:44,838 INFO L? ?]: Removed 166 outVars from TransFormulas that were not future-live. [2024-11-23 23:40:44,838 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:40:44,862 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:40:44,863 INFO L312 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-23 23:40:44,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:40:44 BoogieIcfgContainer [2024-11-23 23:40:44,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:40:44,868 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:40:44,869 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:40:44,876 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:40:44,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:40:17" (1/3) ... [2024-11-23 23:40:44,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1575d7fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:40:44, skipping insertion in model container [2024-11-23 23:40:44,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:20" (2/3) ... [2024-11-23 23:40:44,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1575d7fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:40:44, skipping insertion in model container [2024-11-23 23:40:44,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:40:44" (3/3) ... [2024-11-23 23:40:44,879 INFO L128 eAbstractionObserver]: Analyzing ICFG softsign_w16_r2_case_1_unsafe.c-amalgamation.i [2024-11-23 23:40:44,899 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:40:44,902 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG softsign_w16_r2_case_1_unsafe.c-amalgamation.i that has 17 procedures, 195 locations, 1 initial locations, 32 loop locations, and 1 error locations. [2024-11-23 23:40:44,995 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:40:45,014 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;@4f9729da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:40:45,016 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:40:45,021 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) [2024-11-23 23:40:45,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-23 23:40:45,034 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:40:45,035 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] [2024-11-23 23:40:45,036 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:40:45,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:40:45,044 INFO L85 PathProgramCache]: Analyzing trace with hash -796139321, now seen corresponding path program 1 times [2024-11-23 23:40:45,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:40:45,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804759697] [2024-11-23 23:40:45,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:40:45,079 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 [2024-11-23 23:40:45,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:40:45,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:40:45,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:41:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:41:31,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 5823 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:41:31,062 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:41:31,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:41:31,081 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:41:31,082 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:41:31,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1804759697] [2024-11-23 23:41:31,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1804759697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:41:31,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:41:31,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:41:31,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269685719] [2024-11-23 23:41:31,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:41:31,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:41:31,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:41:31,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:41:31,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:41:31,116 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) [2024-11-23 23:41:31,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:41:31,172 INFO L93 Difference]: Finished difference Result 298 states and 448 transitions. [2024-11-23 23:41:31,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:41:31,174 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 [2024-11-23 23:41:31,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:41:31,186 INFO L225 Difference]: With dead ends: 298 [2024-11-23 23:41:31,186 INFO L226 Difference]: Without dead ends: 147 [2024-11-23 23:41:31,191 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 [2024-11-23 23:41:31,194 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 [2024-11-23 23:41:31,195 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] [2024-11-23 23:41:31,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-23 23:41:31,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-23 23:41:31,249 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) [2024-11-23 23:41:31,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 192 transitions. [2024-11-23 23:41:31,260 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 192 transitions. Word has length 35 [2024-11-23 23:41:31,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:41:31,262 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 192 transitions. [2024-11-23 23:41:31,262 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) [2024-11-23 23:41:31,263 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 192 transitions. [2024-11-23 23:41:31,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-23 23:41:31,264 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:41:31,264 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] [2024-11-23 23:41:31,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:41:31,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:41:31,465 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:41:31,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:41:31,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1555908906, now seen corresponding path program 1 times [2024-11-23 23:41:31,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:41:31,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944074212] [2024-11-23 23:41:31,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:41:31,486 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 [2024-11-23 23:41:31,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:41:31,493 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:41:31,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:42:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:42:16,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 5823 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:42:16,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:42:16,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:42:16,858 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:42:16,858 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:42:16,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944074212] [2024-11-23 23:42:16,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944074212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:42:16,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:42:16,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:42:16,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149960332] [2024-11-23 23:42:16,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:42:16,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:42:16,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:42:16,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:42:16,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:42:16,862 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) [2024-11-23 23:42:20,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:42:20,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:42:20,987 INFO L93 Difference]: Finished difference Result 273 states and 356 transitions. [2024-11-23 23:42:20,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:42:20,990 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 [2024-11-23 23:42:20,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:42:20,992 INFO L225 Difference]: With dead ends: 273 [2024-11-23 23:42:20,992 INFO L226 Difference]: Without dead ends: 147 [2024-11-23 23:42:20,993 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 [2024-11-23 23:42:20,994 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 [2024-11-23 23:42:20,995 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] [2024-11-23 23:42:20,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-23 23:42:21,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-23 23:42:21,007 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) [2024-11-23 23:42:21,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 191 transitions. [2024-11-23 23:42:21,009 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 191 transitions. Word has length 35 [2024-11-23 23:42:21,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:42:21,010 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 191 transitions. [2024-11-23 23:42:21,010 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) [2024-11-23 23:42:21,010 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 191 transitions. [2024-11-23 23:42:21,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-23 23:42:21,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:42:21,016 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] [2024-11-23 23:42:21,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:42:21,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:42:21,217 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:42:21,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:42:21,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1459194712, now seen corresponding path program 1 times [2024-11-23 23:42:21,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:42:21,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1165247234] [2024-11-23 23:42:21,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:42:21,224 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 [2024-11-23 23:42:21,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:42:21,227 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:42:21,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:43:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:43:06,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 5825 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:43:06,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:43:06,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:43:06,993 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:43:06,993 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:43:06,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1165247234] [2024-11-23 23:43:06,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1165247234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:43:06,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:43:06,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:43:06,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945424075] [2024-11-23 23:43:06,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:43:06,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:43:06,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:43:06,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:43:06,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:43:06,996 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) [2024-11-23 23:43:07,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:43:07,223 INFO L93 Difference]: Finished difference Result 158 states and 203 transitions. [2024-11-23 23:43:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:43:07,227 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 [2024-11-23 23:43:07,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:43:07,229 INFO L225 Difference]: With dead ends: 158 [2024-11-23 23:43:07,230 INFO L226 Difference]: Without dead ends: 137 [2024-11-23 23:43:07,230 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 [2024-11-23 23:43:07,231 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 [2024-11-23 23:43:07,232 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] [2024-11-23 23:43:07,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-23 23:43:07,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-11-23 23:43:07,243 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) [2024-11-23 23:43:07,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 176 transitions. [2024-11-23 23:43:07,245 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 176 transitions. Word has length 35 [2024-11-23 23:43:07,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:43:07,246 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 176 transitions. [2024-11-23 23:43:07,246 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) [2024-11-23 23:43:07,246 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 176 transitions. [2024-11-23 23:43:07,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-23 23:43:07,247 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:43:07,247 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] [2024-11-23 23:43:07,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:43:07,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:43:07,448 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:43:07,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:43:07,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1240559489, now seen corresponding path program 1 times [2024-11-23 23:43:07,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:43:07,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097619885] [2024-11-23 23:43:07,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:43:07,454 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 [2024-11-23 23:43:07,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:43:07,457 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:43:07,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:43:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:43:55,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 5825 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-23 23:43:55,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:43:58,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:43:58,590 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:43:58,590 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:43:58,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097619885] [2024-11-23 23:43:58,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097619885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:43:58,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:43:58,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:43:58,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134100353] [2024-11-23 23:43:58,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:43:58,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:43:58,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:43:58,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:43:58,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:43:58,596 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) [2024-11-23 23:44:02,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:44:06,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:44:10,677 WARN L539 Checker$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 [0] [2024-11-23 23:44:14,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:44:19,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:44:24,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:44:30,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:44:35,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:44:39,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:44:42,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:44:42,739 INFO L93 Difference]: Finished difference Result 158 states and 202 transitions. [2024-11-23 23:44:42,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:44:42,742 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 [2024-11-23 23:44:42,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:44:42,743 INFO L225 Difference]: With dead ends: 158 [2024-11-23 23:44:42,744 INFO L226 Difference]: Without dead ends: 146 [2024-11-23 23:44:42,744 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 [2024-11-23 23:44:42,745 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 182 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.0s 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, 44.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:44:42,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 766 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 9 Unknown, 0 Unchecked, 44.1s Time] [2024-11-23 23:44:42,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-23 23:44:42,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 138. [2024-11-23 23:44:42,764 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) [2024-11-23 23:44:42,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 177 transitions. [2024-11-23 23:44:42,766 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 177 transitions. Word has length 35 [2024-11-23 23:44:42,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:44:42,767 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 177 transitions. [2024-11-23 23:44:42,767 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) [2024-11-23 23:44:42,767 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 177 transitions. [2024-11-23 23:44:42,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-23 23:44:42,770 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:44:42,770 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] [2024-11-23 23:44:42,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:44:42,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:44:42,971 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:44:42,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:44:42,971 INFO L85 PathProgramCache]: Analyzing trace with hash 440826912, now seen corresponding path program 1 times [2024-11-23 23:44:42,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:44:42,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1815950622] [2024-11-23 23:44:42,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:44:42,975 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 [2024-11-23 23:44:42,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:44:42,978 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:44:42,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:45:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:45:29,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 6014 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 23:45:29,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:45:42,040 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:45:42,040 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:45:52,886 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:45:52,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1815950622] [2024-11-23 23:45:52,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1815950622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:45:52,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1415373812] [2024-11-23 23:45:52,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:45:52,887 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 23:45:52,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 23:45:52,890 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 23:45:52,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-23 23:46:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:46:44,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 6014 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:46:44,062 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:46:44,753 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-23 23:46:44,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:46:44,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1415373812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:46:44,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:46:44,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2024-11-23 23:46:44,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967370334] [2024-11-23 23:46:44,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:46:44,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:46:44,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:46:44,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:46:44,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:46:44,756 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) [2024-11-23 23:46:44,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:46:44,956 INFO L93 Difference]: Finished difference Result 257 states and 333 transitions. [2024-11-23 23:46:44,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:46:44,957 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 [2024-11-23 23:46:44,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:46:44,961 INFO L225 Difference]: With dead ends: 257 [2024-11-23 23:46:44,961 INFO L226 Difference]: Without dead ends: 146 [2024-11-23 23:46:44,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 161 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:46:44,967 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 [2024-11-23 23:46:44,968 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] [2024-11-23 23:46:44,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-23 23:46:44,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-11-23 23:46:44,991 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) [2024-11-23 23:46:44,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 187 transitions. [2024-11-23 23:46:44,994 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 187 transitions. Word has length 81 [2024-11-23 23:46:44,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:46:44,994 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 187 transitions. [2024-11-23 23:46:44,995 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) [2024-11-23 23:46:44,995 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 187 transitions. [2024-11-23 23:46:44,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-23 23:46:44,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:46:44,998 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] [2024-11-23 23:46:45,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-23 23:46:45,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:46:45,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:46:45,399 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:46:45,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:46:45,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1471778390, now seen corresponding path program 1 times [2024-11-23 23:46:45,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:46:45,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928438986] [2024-11-23 23:46:45,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:46:45,404 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 [2024-11-23 23:46:45,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:46:45,406 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:46:45,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:47:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:34,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 6017 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 23:47:34,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:46,360 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:47:46,360 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:47:57,182 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:47:57,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928438986] [2024-11-23 23:47:57,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928438986] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:47:57,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [98928555] [2024-11-23 23:47:57,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:57,182 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 23:47:57,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 23:47:57,185 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 23:47:57,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-23 23:48:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:47,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 6017 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:48:47,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:48:50,120 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:50,120 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:48:50,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [98928555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:50,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:48:50,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2024-11-23 23:48:50,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943261684] [2024-11-23 23:48:50,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:50,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:48:50,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:48:50,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:48:50,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:48:50,123 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) [2024-11-23 23:48:50,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:50,927 INFO L93 Difference]: Finished difference Result 276 states and 358 transitions. [2024-11-23 23:48:50,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:48:50,928 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 [2024-11-23 23:48:50,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:48:50,930 INFO L225 Difference]: With dead ends: 276 [2024-11-23 23:48:50,930 INFO L226 Difference]: Without dead ends: 154 [2024-11-23 23:48:50,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 164 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:48:50,933 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 28 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:48:50,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 826 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:48:50,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-23 23:48:50,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 147. [2024-11-23 23:48:50,953 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) [2024-11-23 23:48:50,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 188 transitions. [2024-11-23 23:48:50,955 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 188 transitions. Word has length 83 [2024-11-23 23:48:50,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:48:50,959 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 188 transitions. [2024-11-23 23:48:50,960 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) [2024-11-23 23:48:50,960 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 188 transitions. [2024-11-23 23:48:50,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-23 23:48:50,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:48:50,963 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] [2024-11-23 23:48:51,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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)] Forceful destruction successful, exit code 0 [2024-11-23 23:48:51,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-23 23:48:51,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-23 23:48:51,364 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:48:51,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:51,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1254482730, now seen corresponding path program 1 times [2024-11-23 23:48:51,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:48:51,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444465866] [2024-11-23 23:48:51,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:51,370 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 [2024-11-23 23:48:51,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:48:51,372 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:48:51,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:49:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:49:38,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 6029 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 23:49:38,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:49:51,833 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 23:49:51,833 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:50:02,753 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:50:02,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [444465866] [2024-11-23 23:50:02,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [444465866] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:50:02,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [989707779] [2024-11-23 23:50:02,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:50:02,753 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 23:50:02,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 23:50:02,756 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 23:50:02,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-23 23:51:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:51:02,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 6029 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 23:51:02,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:51:09,810 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-23 23:51:09,810 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:51:16,480 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-23 23:51:16,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [989707779] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:51:16,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:51:16,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13, 7] total 20 [2024-11-23 23:51:16,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890114930] [2024-11-23 23:51:16,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:51:16,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:51:16,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:51:16,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:51:16,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:51:16,483 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) [2024-11-23 23:51:20,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:51:26,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.62s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:51:31,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:51:32,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:51:33,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:51:33,728 INFO L93 Difference]: Finished difference Result 179 states and 228 transitions. [2024-11-23 23:51:33,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:51:33,733 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 [2024-11-23 23:51:33,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:51:33,738 INFO L225 Difference]: With dead ends: 179 [2024-11-23 23:51:33,738 INFO L226 Difference]: Without dead ends: 150 [2024-11-23 23:51:33,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 266 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:51:33,740 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 29 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s 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, 17.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:51:33,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 542 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 3 Unknown, 0 Unchecked, 17.2s Time] [2024-11-23 23:51:33,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-23 23:51:33,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2024-11-23 23:51:33,759 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) [2024-11-23 23:51:33,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 189 transitions. [2024-11-23 23:51:33,761 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 189 transitions. Word has length 91 [2024-11-23 23:51:33,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:51:33,762 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 189 transitions. [2024-11-23 23:51:33,762 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) [2024-11-23 23:51:33,762 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 189 transitions. [2024-11-23 23:51:33,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-23 23:51:33,764 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:51:33,764 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] [2024-11-23 23:51:33,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-23 23:51:34,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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)] Forceful destruction successful, exit code 0 [2024-11-23 23:51:34,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:51:34,165 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:51:34,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:51:34,165 INFO L85 PathProgramCache]: Analyzing trace with hash 374474838, now seen corresponding path program 1 times [2024-11-23 23:51:34,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:51:34,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260503020] [2024-11-23 23:51:34,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:51:34,171 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 [2024-11-23 23:51:34,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:51:34,173 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:51:34,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:52:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:52:23,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 6029 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 23:52:23,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:52:39,383 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 23:52:39,383 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:52:53,807 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:52:53,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260503020] [2024-11-23 23:52:53,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260503020] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:52:53,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1658503118] [2024-11-23 23:52:53,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:52:53,807 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 23:52:53,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 23:52:53,810 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 23:52:53,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-23 23:53:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:45,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 6029 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:53:45,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:53:49,011 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-23 23:53:49,012 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:53:49,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1658503118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:49,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:53:49,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-11-23 23:53:49,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736954650] [2024-11-23 23:53:49,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:49,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:53:49,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:53:49,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:53:49,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:53:49,015 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) [2024-11-23 23:53:50,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:50,073 INFO L93 Difference]: Finished difference Result 155 states and 195 transitions. [2024-11-23 23:53:50,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:53:50,074 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 [2024-11-23 23:53:50,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:50,076 INFO L225 Difference]: With dead ends: 155 [2024-11-23 23:53:50,076 INFO L226 Difference]: Without dead ends: 137 [2024-11-23 23:53:50,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 181 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:53:50,077 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 14 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:50,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 675 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:53:50,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-23 23:53:50,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-11-23 23:53:50,088 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) [2024-11-23 23:53:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2024-11-23 23:53:50,090 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 91 [2024-11-23 23:53:50,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:50,090 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2024-11-23 23:53:50,091 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) [2024-11-23 23:53:50,091 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2024-11-23 23:53:50,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-23 23:53:50,092 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:50,093 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] [2024-11-23 23:53:50,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-23 23:53:50,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:53:50,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:53:50,494 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:50,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:50,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1857066074, now seen corresponding path program 1 times [2024-11-23 23:53:50,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:53:50,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631807326] [2024-11-23 23:53:50,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:50,498 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 [2024-11-23 23:53:50,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:53:50,500 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:53:50,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab3fe29-ed73-4bf5-99d6-6e84f8c1aeb6/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:54:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:44,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 6041 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 23:54:44,485 INFO L279 TraceCheckSpWp]: Computing forward predicates...