./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce929d4b8e516d9e6e8f9406197408f50e5e07a2a68710af0cc8588994ada67a
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-01 13:14:25,556 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-01 13:14:25,623 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-12-01 13:14:25,629 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-01 13:14:25,629 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-01 13:14:25,656 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-01 13:14:25,656 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-01 13:14:25,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-01 13:14:25,657 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-01 13:14:25,657 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-01 13:14:25,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-01 13:14:25,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-01 13:14:25,658 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-01 13:14:25,658 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-01 13:14:25,658 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-01 13:14:25,658 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-01 13:14:25,658 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-01 13:14:25,658 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-01 13:14:25,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-01 13:14:25,659 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-01 13:14:25,659 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-01 13:14:25,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-01 13:14:25,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-01 13:14:25,659 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-01 13:14:25,659 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-12-01 13:14:25,659 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-01 13:14:25,659 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-01 13:14:25,659 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-01 13:14:25,659 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-01 13:14:25,660 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-01 13:14:25,660 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-01 13:14:25,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-01 13:14:25,660 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-01 13:14:25,660 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-01 13:14:25,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 13:14:25,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-01 13:14:25,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-01 13:14:25,660 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-01 13:14:25,660 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-01 13:14:25,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 13:14:25,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-01 13:14:25,661 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-01 13:14:25,661 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-01 13:14:25,661 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-01 13:14:25,661 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-01 13:14:25,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-01 13:14:25,661 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-01 13:14:25,661 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-01 13:14:25,661 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-01 13:14:25,662 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-01 13:14:25,662 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_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1
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 ! overflow) )
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 -> ce929d4b8e516d9e6e8f9406197408f50e5e07a2a68710af0cc8588994ada67a
[2024-12-01 13:14:25,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-01 13:14:25,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-01 13:14:25,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-01 13:14:25,954 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-01 13:14:25,954 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-01 13:14:25,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i
[2024-12-01 13:14:29,059 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/data/b103ced86/5a1999cfcbce4a139034379ff07badab/FLAG52d73fad5
[2024-12-01 13:14:29,264 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-01 13:14:29,265 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i
[2024-12-01 13:14:29,275 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/data/b103ced86/5a1999cfcbce4a139034379ff07badab/FLAG52d73fad5
[2024-12-01 13:14:29,290 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/data/b103ced86/5a1999cfcbce4a139034379ff07badab
[2024-12-01 13:14:29,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-01 13:14:29,294 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-01 13:14:29,295 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-01 13:14:29,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-01 13:14:29,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-01 13:14:29,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:14:29" (1/1) ...
[2024-12-01 13:14:29,301 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c3a017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:29, skipping insertion in model container
[2024-12-01 13:14:29,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:14:29" (1/1) ...
[2024-12-01 13:14:29,316 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-01 13:14:29,463 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: sqrt
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: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.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.<init>(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$Toolchain.processToolchain(ToolchainManager.java:319)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2024-12-01 13:14:29,470 INFO L158 Benchmark]: Toolchain (without parser) took 174.83ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 83.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-01 13:14:29,471 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 72.9MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-01 13:14:29,471 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.50ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 83.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-01 13:14:29,473 INFO L338 ainManager$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 was 73.1MB in the beginning and 72.9MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 172.50ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 83.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt
de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: 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_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce929d4b8e516d9e6e8f9406197408f50e5e07a2a68710af0cc8588994ada67a
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-01 13:14:31,511 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-01 13:14:31,615 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf
[2024-12-01 13:14:31,624 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-01 13:14:31,624 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-01 13:14:31,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-01 13:14:31,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-01 13:14:31,653 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-01 13:14:31,653 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-01 13:14:31,653 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-01 13:14:31,653 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-01 13:14:31,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-01 13:14:31,654 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-01 13:14:31,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-01 13:14:31,654 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-01 13:14:31,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-01 13:14:31,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-01 13:14:31,654 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-01 13:14:31,654 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-01 13:14:31,654 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-01 13:14:31,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-01 13:14:31,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-01 13:14:31,655 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-01 13:14:31,655 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-01 13:14:31,655 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-12-01 13:14:31,655 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-12-01 13:14:31,655 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-12-01 13:14:31,655 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-01 13:14:31,655 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-01 13:14:31,655 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-01 13:14:31,656 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-01 13:14:31,656 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-01 13:14:31,656 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-01 13:14:31,656 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-01 13:14:31,656 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-01 13:14:31,656 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-01 13:14:31,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 13:14:31,656 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-01 13:14:31,656 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-01 13:14:31,656 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-01 13:14:31,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-01 13:14:31,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 13:14:31,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-01 13:14:31,657 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-01 13:14:31,657 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-01 13:14:31,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-01 13:14:31,657 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-12-01 13:14:31,657 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-12-01 13:14:31,657 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-01 13:14:31,657 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-01 13:14:31,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-01 13:14:31,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-01 13:14:31,658 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_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1
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 ! overflow) )
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 -> ce929d4b8e516d9e6e8f9406197408f50e5e07a2a68710af0cc8588994ada67a
[2024-12-01 13:14:31,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-01 13:14:31,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-01 13:14:31,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-01 13:14:31,960 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-01 13:14:31,960 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-01 13:14:31,962 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i
[2024-12-01 13:14:35,104 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/data/7c514683a/53135b2b39484e12aa1d398cdff1c485/FLAG313e86ce6
[2024-12-01 13:14:35,301 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-01 13:14:35,302 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i
[2024-12-01 13:14:35,313 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/data/7c514683a/53135b2b39484e12aa1d398cdff1c485/FLAG313e86ce6
[2024-12-01 13:14:35,332 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/data/7c514683a/53135b2b39484e12aa1d398cdff1c485
[2024-12-01 13:14:35,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-01 13:14:35,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-01 13:14:35,338 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-01 13:14:35,338 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-01 13:14:35,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-01 13:14:35,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:14:35" (1/1) ...
[2024-12-01 13:14:35,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@146500b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:35, skipping insertion in model container
[2024-12-01 13:14:35,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:14:35" (1/1) ...
[2024-12-01 13:14:35,366 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-01 13:14:35,586 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-01 13:14:35,600 INFO L200 MainTranslator]: Completed pre-run
[2024-12-01 13:14:35,635 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-01 13:14:35,656 INFO L204 MainTranslator]: Completed translation
[2024-12-01 13:14:35,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:35 WrapperNode
[2024-12-01 13:14:35,657 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-01 13:14:35,658 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-01 13:14:35,658 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-01 13:14:35,659 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-01 13:14:35,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:35" (1/1) ...
[2024-12-01 13:14:35,679 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:35" (1/1) ...
[2024-12-01 13:14:35,703 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86
[2024-12-01 13:14:35,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-01 13:14:35,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-01 13:14:35,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-01 13:14:35,705 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-01 13:14:35,716 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:35" (1/1) ...
[2024-12-01 13:14:35,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:35" (1/1) ...
[2024-12-01 13:14:35,719 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:35" (1/1) ...
[2024-12-01 13:14:35,733 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0].
[2024-12-01 13:14:35,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:35" (1/1) ...
[2024-12-01 13:14:35,734 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:35" (1/1) ...
[2024-12-01 13:14:35,741 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:35" (1/1) ...
[2024-12-01 13:14:35,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:35" (1/1) ...
[2024-12-01 13:14:35,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:35" (1/1) ...
[2024-12-01 13:14:35,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:35" (1/1) ...
[2024-12-01 13:14:35,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:35" (1/1) ...
[2024-12-01 13:14:35,752 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-01 13:14:35,753 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-01 13:14:35,753 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-01 13:14:35,753 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-01 13:14:35,754 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:35" (1/1) ...
[2024-12-01 13:14:35,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 13:14:35,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 13:14:35,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-01 13:14:35,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-01 13:14:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-01 13:14:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-12-01 13:14:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-12-01 13:14:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-12-01 13:14:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-12-01 13:14:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-01 13:14:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-01 13:14:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-12-01 13:14:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-12-01 13:14:35,885 INFO L234 CfgBuilder]: Building ICFG
[2024-12-01 13:14:35,887 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-01 13:14:40,951 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live.
[2024-12-01 13:14:40,951 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-01 13:14:40,959 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-01 13:14:40,959 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-01 13:14:40,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:14:40 BoogieIcfgContainer
[2024-12-01 13:14:40,960 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-01 13:14:40,961 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-01 13:14:40,961 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-01 13:14:40,966 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-01 13:14:40,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:14:35" (1/3) ...
[2024-12-01 13:14:40,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b20235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:14:40, skipping insertion in model container
[2024-12-01 13:14:40,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:35" (2/3) ...
[2024-12-01 13:14:40,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b20235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:14:40, skipping insertion in model container
[2024-12-01 13:14:40,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:14:40" (3/3) ...
[2024-12-01 13:14:40,968 INFO L128 eAbstractionObserver]: Analyzing ICFG knuth_unwindbound5.i
[2024-12-01 13:14:40,980 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-01 13:14:40,981 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG knuth_unwindbound5.i that has 3 procedures, 34 locations, 1 initial locations, 1 loop locations, and 2 error locations.
[2024-12-01 13:14:41,023 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-01 13:14:41,034 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;@71dc5611, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-01 13:14:41,034 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-12-01 13:14:41,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 25 states have internal predecessors, (34), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-12-01 13:14:41,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-12-01 13:14:41,043 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 13:14:41,043 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 13:14:41,044 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-12-01 13:14:41,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:14:41,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1741385313, now seen corresponding path program 1 times
[2024-12-01 13:14:41,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-01 13:14:41,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458429179]
[2024-12-01 13:14:41,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:14:41,056 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
[2024-12-01 13:14:41,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/mathsat
[2024-12-01 13:14:41,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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)
[2024-12-01 13:14:41,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 13:14:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:14:41,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-12-01 13:14:41,350 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 13:14:41,365 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-12-01 13:14:41,365 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-01 13:14:41,365 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-01 13:14:41,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458429179]
[2024-12-01 13:14:41,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458429179] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 13:14:41,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 13:14:41,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-01 13:14:41,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819660825]
[2024-12-01 13:14:41,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 13:14:41,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-01 13:14:41,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-01 13:14:41,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-01 13:14:41,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-01 13:14:41,385 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 25 states have internal predecessors, (34), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-01 13:14:41,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 13:14:41,398 INFO L93 Difference]: Finished difference Result 63 states and 93 transitions.
[2024-12-01 13:14:41,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-01 13:14:41,399 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15
[2024-12-01 13:14:41,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 13:14:41,403 INFO L225 Difference]: With dead ends: 63
[2024-12-01 13:14:41,403 INFO L226 Difference]: Without dead ends: 26
[2024-12-01 13:14:41,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-01 13:14:41,408 INFO L435 NwaCegarLoop]: 40 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, 40 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
[2024-12-01 13:14:41,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-01 13:14:41,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2024-12-01 13:14:41,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26.
[2024-12-01 13:14:41,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-12-01 13:14:41,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions.
[2024-12-01 13:14:41,443 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 15
[2024-12-01 13:14:41,444 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-01 13:14:41,444 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions.
[2024-12-01 13:14:41,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-01 13:14:41,444 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions.
[2024-12-01 13:14:41,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-12-01 13:14:41,446 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 13:14:41,446 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 13:14:41,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 13:14:41,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 13:14:41,647 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-12-01 13:14:41,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:14:41,649 INFO L85 PathProgramCache]: Analyzing trace with hash -410164308, now seen corresponding path program 1 times
[2024-12-01 13:14:41,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-01 13:14:41,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480552432]
[2024-12-01 13:14:41,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:14:41,650 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
[2024-12-01 13:14:41,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/mathsat
[2024-12-01 13:14:41,653 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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)
[2024-12-01 13:14:41,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 13:14:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:14:41,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-01 13:14:41,951 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 13:14:42,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-12-01 13:14:42,740 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-01 13:14:42,740 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-01 13:14:42,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480552432]
[2024-12-01 13:14:42,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480552432] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 13:14:42,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 13:14:42,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-01 13:14:42,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311034684]
[2024-12-01 13:14:42,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 13:14:42,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-01 13:14:42,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-01 13:14:42,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-01 13:14:42,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-01 13:14:42,743 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-01 13:14:43,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 13:14:43,040 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions.
[2024-12-01 13:14:43,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-01 13:14:43,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16
[2024-12-01 13:14:43,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 13:14:43,042 INFO L225 Difference]: With dead ends: 31
[2024-12-01 13:14:43,042 INFO L226 Difference]: Without dead ends: 30
[2024-12-01 13:14:43,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-01 13:14:43,043 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 3 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-01 13:14:43,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 76 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-01 13:14:43,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2024-12-01 13:14:43,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29.
[2024-12-01 13:14:43,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-12-01 13:14:43,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions.
[2024-12-01 13:14:43,049 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 16
[2024-12-01 13:14:43,050 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-01 13:14:43,050 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions.
[2024-12-01 13:14:43,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-01 13:14:43,051 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions.
[2024-12-01 13:14:43,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2024-12-01 13:14:43,052 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 13:14:43,052 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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]
[2024-12-01 13:14:43,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2024-12-01 13:14:43,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 13:14:43,252 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-12-01 13:14:43,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:14:43,253 INFO L85 PathProgramCache]: Analyzing trace with hash 371895516, now seen corresponding path program 1 times
[2024-12-01 13:14:43,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-01 13:14:43,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793555058]
[2024-12-01 13:14:43,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:14:43,254 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
[2024-12-01 13:14:43,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/mathsat
[2024-12-01 13:14:43,256 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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)
[2024-12-01 13:14:43,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 13:14:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:14:43,632 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-01 13:14:43,635 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 13:14:45,676 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-12-01 13:14:45,676 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-01 13:14:47,667 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-12-01 13:14:47,667 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-01 13:14:47,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793555058]
[2024-12-01 13:14:47,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793555058] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-01 13:14:47,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-01 13:14:47,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9
[2024-12-01 13:14:47,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322386379]
[2024-12-01 13:14:47,669 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-01 13:14:47,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-01 13:14:47,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-01 13:14:47,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-01 13:14:47,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90
[2024-12-01 13:14:47,671 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12)
[2024-12-01 13:14:53,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 13:14:53,199 INFO L93 Difference]: Finished difference Result 78 states and 105 transitions.
[2024-12-01 13:14:53,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-12-01 13:14:53,200 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 42
[2024-12-01 13:14:53,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 13:14:53,202 INFO L225 Difference]: With dead ends: 78
[2024-12-01 13:14:53,202 INFO L226 Difference]: Without dead ends: 77
[2024-12-01 13:14:53,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306
[2024-12-01 13:14:53,204 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 59 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time
[2024-12-01 13:14:53,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 140 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time]
[2024-12-01 13:14:53,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states.
[2024-12-01 13:14:53,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77.
[2024-12-01 13:14:53,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 53 states have internal predecessors, (66), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-12-01 13:14:53,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 102 transitions.
[2024-12-01 13:14:53,223 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 102 transitions. Word has length 42
[2024-12-01 13:14:53,224 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-01 13:14:53,224 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 102 transitions.
[2024-12-01 13:14:53,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12)
[2024-12-01 13:14:53,224 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 102 transitions.
[2024-12-01 13:14:53,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2024-12-01 13:14:53,228 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 13:14:53,228 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 13:14:53,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0
[2024-12-01 13:14:53,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 13:14:53,428 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-12-01 13:14:53,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:14:53,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1723211668, now seen corresponding path program 2 times
[2024-12-01 13:14:53,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-01 13:14:53,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660426235]
[2024-12-01 13:14:53,430 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-01 13:14:53,430 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
[2024-12-01 13:14:53,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/mathsat
[2024-12-01 13:14:53,432 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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)
[2024-12-01 13:14:53,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 13:14:54,184 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-01 13:14:54,184 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-01 13:14:54,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-12-01 13:14:54,244 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 13:15:01,219 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 456 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2024-12-01 13:15:01,219 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-01 13:15:09,284 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked.
[2024-12-01 13:15:09,284 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-01 13:15:09,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660426235]
[2024-12-01 13:15:09,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [660426235] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-01 13:15:09,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-01 13:15:09,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21
[2024-12-01 13:15:09,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567102585]
[2024-12-01 13:15:09,285 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-01 13:15:09,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2024-12-01 13:15:09,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-01 13:15:09,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2024-12-01 13:15:09,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462
[2024-12-01 13:15:09,287 INFO L87 Difference]: Start difference. First operand 77 states and 102 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 10 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36)
[2024-12-01 13:15:35,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 13:15:35,421 INFO L93 Difference]: Finished difference Result 174 states and 240 transitions.
[2024-12-01 13:15:35,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states.
[2024-12-01 13:15:35,422 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 10 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36) Word has length 120
[2024-12-01 13:15:35,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 13:15:35,425 INFO L225 Difference]: With dead ends: 174
[2024-12-01 13:15:35,425 INFO L226 Difference]: Without dead ends: 173
[2024-12-01 13:15:35,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=533, Invalid=1447, Unknown=0, NotChecked=0, Total=1980
[2024-12-01 13:15:35,428 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 294 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time
[2024-12-01 13:15:35,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 975 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time]
[2024-12-01 13:15:35,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states.
[2024-12-01 13:15:35,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173.
[2024-12-01 13:15:35,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 119 states have (on average 1.2605042016806722) internal successors, (150), 119 states have internal predecessors, (150), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2024-12-01 13:15:35,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 234 transitions.
[2024-12-01 13:15:35,456 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 234 transitions. Word has length 120
[2024-12-01 13:15:35,456 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-01 13:15:35,456 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 234 transitions.
[2024-12-01 13:15:35,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 10 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36)
[2024-12-01 13:15:35,456 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 234 transitions.
[2024-12-01 13:15:35,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277
[2024-12-01 13:15:35,460 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 13:15:35,460 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 40, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 13:15:35,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 13:15:35,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 13:15:35,661 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-12-01 13:15:35,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:15:35,662 INFO L85 PathProgramCache]: Analyzing trace with hash 285692812, now seen corresponding path program 3 times
[2024-12-01 13:15:35,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-01 13:15:35,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102604437]
[2024-12-01 13:15:35,664 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-01 13:15:35,664 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
[2024-12-01 13:15:35,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/mathsat
[2024-12-01 13:15:35,666 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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)
[2024-12-01 13:15:35,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 13:15:36,042 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-12-01 13:15:36,043 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-01 13:15:36,058 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-01 13:15:36,067 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 13:15:37,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3604 backedges. 669 proven. 0 refuted. 0 times theorem prover too weak. 2935 trivial. 0 not checked.
[2024-12-01 13:15:37,452 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-01 13:15:37,452 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-01 13:15:37,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102604437]
[2024-12-01 13:15:37,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102604437] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 13:15:37,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 13:15:37,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-01 13:15:37,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802033927]
[2024-12-01 13:15:37,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 13:15:37,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-01 13:15:37,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-01 13:15:37,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-01 13:15:37,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-01 13:15:37,455 INFO L87 Difference]: Start difference. First operand 173 states and 234 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)
[2024-12-01 13:15:38,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 13:15:38,971 INFO L93 Difference]: Finished difference Result 173 states and 234 transitions.
[2024-12-01 13:15:38,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-01 13:15:38,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 276
[2024-12-01 13:15:38,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 13:15:38,982 INFO L225 Difference]: With dead ends: 173
[2024-12-01 13:15:38,982 INFO L226 Difference]: Without dead ends: 0
[2024-12-01 13:15:38,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-12-01 13:15:38,984 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 17 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-12-01 13:15:38,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 69 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-12-01 13:15:38,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-12-01 13:15:38,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-12-01 13:15:38,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-01 13:15:38,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-12-01 13:15:38,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 276
[2024-12-01 13:15:38,987 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-01 13:15:38,987 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-12-01 13:15:38,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)
[2024-12-01 13:15:38,987 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-12-01 13:15:38,987 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-12-01 13:15:38,990 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-12-01 13:15:38,990 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-12-01 13:15:39,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 13:15:39,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/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
[2024-12-01 13:15:39,194 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1]
[2024-12-01 13:15:39,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-12-01 13:15:43,321 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-01 13:15:43,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 01:15:43 BoogieIcfgContainer
[2024-12-01 13:15:43,335 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-01 13:15:43,336 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-01 13:15:43,336 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-01 13:15:43,336 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-01 13:15:43,337 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:14:40" (3/4) ...
[2024-12-01 13:15:43,339 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-12-01 13:15:43,344 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not
[2024-12-01 13:15:43,344 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2024-12-01 13:15:43,349 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges
[2024-12-01 13:15:43,349 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges
[2024-12-01 13:15:43,349 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-12-01 13:15:43,349 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-12-01 13:15:43,350 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-12-01 13:15:43,421 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-01 13:15:43,421 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-01 13:15:43,421 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-01 13:15:43,422 INFO L158 Benchmark]: Toolchain (without parser) took 68085.53ms. Allocated memory is still 92.3MB. Free memory was 69.7MB in the beginning and 59.4MB in the end (delta: 10.2MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB.
[2024-12-01 13:15:43,422 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-01 13:15:43,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.49ms. Allocated memory is still 92.3MB. Free memory was 69.5MB in the beginning and 56.6MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-01 13:15:43,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.68ms. Allocated memory is still 92.3MB. Free memory was 56.6MB in the beginning and 55.1MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-01 13:15:43,423 INFO L158 Benchmark]: Boogie Preprocessor took 47.43ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 53.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-01 13:15:43,424 INFO L158 Benchmark]: RCFGBuilder took 5207.08ms. Allocated memory is still 92.3MB. Free memory was 53.2MB in the beginning and 67.8MB in the end (delta: -14.6MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB.
[2024-12-01 13:15:43,424 INFO L158 Benchmark]: TraceAbstraction took 62373.71ms. Allocated memory is still 92.3MB. Free memory was 67.2MB in the beginning and 64.5MB in the end (delta: 2.7MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB.
[2024-12-01 13:15:43,424 INFO L158 Benchmark]: Witness Printer took 85.38ms. Allocated memory is still 92.3MB. Free memory was 64.5MB in the beginning and 59.4MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-01 13:15:43,426 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 319.49ms. Allocated memory is still 92.3MB. Free memory was 69.5MB in the beginning and 56.6MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 45.68ms. Allocated memory is still 92.3MB. Free memory was 56.6MB in the beginning and 55.1MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 47.43ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 53.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 5207.08ms. Allocated memory is still 92.3MB. Free memory was 53.2MB in the beginning and 67.8MB in the end (delta: -14.6MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB.
* TraceAbstraction took 62373.71ms. Allocated memory is still 92.3MB. Free memory was 67.2MB in the beginning and 64.5MB in the end (delta: 2.7MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB.
* Witness Printer took 85.38ms. Allocated memory is still 92.3MB. Free memory was 64.5MB in the beginning and 59.4MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 40]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 40]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 34 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 58.2s, OverallIterations: 5, TraceHistogramMax: 40, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 33.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 373 SdHoareTripleChecker+Valid, 21.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 373 mSDsluCounter, 1300 SdHoareTripleChecker+Invalid, 19.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1091 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 541 IncrementalHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 209 mSDtfsCounter, 541 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 663 GetRequests, 596 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 21.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173occurred in iteration=4, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 21.4s InterpolantComputationTime, 469 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 624 ConstructedInterpolants, 0 QuantifiedInterpolants, 1486 SizeOfPredicates, 14 NumberOfNonLiveVariables, 444 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 4252/4786 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
2 specifications checked. All of them hold
- InvariantResult [Line: 40]: Loop Invariant
Derived loop invariant: (((counter + -1) % 4294967296) < 5)
RESULT: Ultimate proved your program to be correct!
[2024-12-01 13:15:43,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4049e28-eaa2-4904-b9a7-e30e37e1a456/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE