./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/tanh_w4_r2_case_0_safe.c-amalgamation.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_w4_r2_case_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 47783cc847f02b9f5de3679e88c3d8c8ce64df412a1a2d0bcef27942c1d72b21
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 23:37:37,736 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 23:37:37,836 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-23 23:37:37,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 23:37:37,845 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 23:37:37,868 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 23:37:37,869 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 23:37:37,869 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 23:37:37,869 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 23:37:37,869 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 23:37:37,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 23:37:37,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 23:37:37,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 23:37:37,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 23:37:37,870 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 23:37:37,870 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 23:37:37,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 23:37:37,870 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 23:37:37,871 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 23:37:37,871 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 23:37:37,871 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 23:37:37,871 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 23:37:37,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 23:37:37,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 23:37:37,871 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 23:37:37,871 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 23:37:37,871 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 23:37:37,871 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 23:37:37,872 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 23:37:37,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:37:37,872 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:37:37,872 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:37:37,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:37:37,872 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 23:37:37,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:37:37,872 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:37:37,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:37:37,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:37:37,873 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 23:37:37,873 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 23:37:37,873 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 23:37:37,873 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 23:37:37,873 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 23:37:37,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 23:37:37,873 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 23:37:37,873 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 23:37:37,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 23:37:37,874 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 23:37:37,874 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_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47783cc847f02b9f5de3679e88c3d8c8ce64df412a1a2d0bcef27942c1d72b21
[2024-11-23 23:37:38,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 23:37:38,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 23:37:38,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 23:37:38,158 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 23:37:38,158 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 23:37:38,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/neural-networks/tanh_w4_r2_case_0_safe.c-amalgamation.i
[2024-11-23 23:37:41,220 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/data/19a413452/e3aad435be564a8f9cf1efc763c30804/FLAG997ef65ca
[2024-11-23 23:37:41,777 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 23:37:41,777 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/sv-benchmarks/c/neural-networks/tanh_w4_r2_case_0_safe.c-amalgamation.i
[2024-11-23 23:37:41,818 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/data/19a413452/e3aad435be564a8f9cf1efc763c30804/FLAG997ef65ca
[2024-11-23 23:37:41,837 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/data/19a413452/e3aad435be564a8f9cf1efc763c30804
[2024-11-23 23:37:41,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 23:37:41,841 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 23:37:41,844 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 23:37:41,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 23:37:41,850 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 23:37:41,851 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:37:41" (1/1) ...
[2024-11-23 23:37:41,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2f1a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:41, skipping insertion in model container
[2024-11-23 23:37:41,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:37:41" (1/1) ...
[2024-11-23 23:37:41,947 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 23:37:43,053 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/sv-benchmarks/c/neural-networks/tanh_w4_r2_case_0_safe.c-amalgamation.i[71397,71410]
[2024-11-23 23:37:43,321 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception:
java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3128)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1602)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:783)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2556)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:307)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:783)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:783)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1507)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1158)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1141)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleLoopBody(CHandler.java:3602)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1554)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:227)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1158)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1141)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:393)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1629)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3507)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2500)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:641)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116)
at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.<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$Toolchain.processToolchain(ToolchainManager.java:319)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2024-11-23 23:37:43,334 INFO L158 Benchmark]: Toolchain (without parser) took 1489.64ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 60.6MB in the end (delta: 28.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-23 23:37:43,335 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory was 103.5MB in the beginning and 103.3MB in the end (delta: 215.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 23:37:43,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1485.56ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 60.6MB in the end (delta: 28.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-23 23:37:43,337 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory was 103.5MB in the beginning and 103.3MB in the end (delta: 215.8kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1485.56ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 60.6MB in the end (delta: 28.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs
de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_w4_r2_case_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 47783cc847f02b9f5de3679e88c3d8c8ce64df412a1a2d0bcef27942c1d72b21
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 23:37:45,762 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 23:37:45,896 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-23 23:37:45,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 23:37:45,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 23:37:45,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 23:37:45,952 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 23:37:45,952 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 23:37:45,953 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 23:37:45,953 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 23:37:45,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 23:37:45,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 23:37:45,954 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 23:37:45,954 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 23:37:45,954 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 23:37:45,954 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 23:37:45,955 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 23:37:45,955 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 23:37:45,955 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 23:37:45,955 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 23:37:45,955 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 23:37:45,955 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 23:37:45,955 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 23:37:45,955 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-23 23:37:45,955 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-23 23:37:45,955 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-23 23:37:45,955 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 23:37:45,956 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 23:37:45,956 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 23:37:45,956 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 23:37:45,956 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 23:37:45,956 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:37:45,956 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:37:45,956 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:37:45,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:37:45,956 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 23:37:45,958 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:37:45,958 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:37:45,958 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:37:45,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:37:45,958 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 23:37:45,958 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 23:37:45,958 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 23:37:45,958 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 23:37:45,959 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-23 23:37:45,959 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-23 23:37:45,959 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 23:37:45,959 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 23:37:45,959 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 23:37:45,959 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 23:37:45,959 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_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47783cc847f02b9f5de3679e88c3d8c8ce64df412a1a2d0bcef27942c1d72b21
[2024-11-23 23:37:46,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 23:37:46,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 23:37:46,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 23:37:46,304 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 23:37:46,304 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 23:37:46,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/neural-networks/tanh_w4_r2_case_0_safe.c-amalgamation.i
[2024-11-23 23:37:49,361 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/data/7e41d80ec/a14722fa77d74183ba9d3d9bb2eaf89e/FLAGa81033349
[2024-11-23 23:37:49,778 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 23:37:49,779 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/sv-benchmarks/c/neural-networks/tanh_w4_r2_case_0_safe.c-amalgamation.i
[2024-11-23 23:37:49,809 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/data/7e41d80ec/a14722fa77d74183ba9d3d9bb2eaf89e/FLAGa81033349
[2024-11-23 23:37:49,932 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/data/7e41d80ec/a14722fa77d74183ba9d3d9bb2eaf89e
[2024-11-23 23:37:49,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 23:37:49,936 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 23:37:49,937 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 23:37:49,937 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 23:37:49,942 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 23:37:49,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:37:49" (1/1) ...
[2024-11-23 23:37:49,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eb0dd47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:49, skipping insertion in model container
[2024-11-23 23:37:49,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:37:49" (1/1) ...
[2024-11-23 23:37:49,996 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 23:37:51,113 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/sv-benchmarks/c/neural-networks/tanh_w4_r2_case_0_safe.c-amalgamation.i[71397,71410]
[2024-11-23 23:37:51,488 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-23 23:37:51,588 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:37:51,611 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 23:37:51,693 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/sv-benchmarks/c/neural-networks/tanh_w4_r2_case_0_safe.c-amalgamation.i[71397,71410]
[2024-11-23 23:37:51,852 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:37:52,096 INFO L204 MainTranslator]: Completed translation
[2024-11-23 23:37:52,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:52 WrapperNode
[2024-11-23 23:37:52,098 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 23:37:52,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 23:37:52,100 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 23:37:52,100 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 23:37:52,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:52" (1/1) ...
[2024-11-23 23:37:52,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:52" (1/1) ...
[2024-11-23 23:37:52,231 INFO L138 Inliner]: procedures = 780, calls = 713, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 402
[2024-11-23 23:37:52,232 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 23:37:52,233 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 23:37:52,233 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 23:37:52,233 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 23:37:52,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:52" (1/1) ...
[2024-11-23 23:37:52,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:52" (1/1) ...
[2024-11-23 23:37:52,264 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:52" (1/1) ...
[2024-11-23 23:37:52,311 INFO L175 MemorySlicer]: Split 177 memory accesses to 12 slices as follows [2, 43, 7, 2, 23, 11, 10, 35, 12, 9, 11, 12]. 24 percent of accesses are in the largest equivalence class. The 83 initializations are split as follows [2, 12, 7, 2, 12, 8, 8, 0, 8, 8, 8, 8]. The 56 writes are split as follows [0, 14, 0, 0, 5, 0, 0, 34, 0, 0, 0, 3].
[2024-11-23 23:37:52,317 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:52" (1/1) ...
[2024-11-23 23:37:52,317 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:52" (1/1) ...
[2024-11-23 23:37:52,369 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:52" (1/1) ...
[2024-11-23 23:37:52,373 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:52" (1/1) ...
[2024-11-23 23:37:52,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:52" (1/1) ...
[2024-11-23 23:37:52,385 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:52" (1/1) ...
[2024-11-23 23:37:52,389 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:52" (1/1) ...
[2024-11-23 23:37:52,398 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 23:37:52,399 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 23:37:52,399 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 23:37:52,399 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 23:37:52,400 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:52" (1/1) ...
[2024-11-23 23:37:52,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:37:52,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:37:52,447 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 23:37:52,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 23:37:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0
[2024-11-23 23:37:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1
[2024-11-23 23:37:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2
[2024-11-23 23:37:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3
[2024-11-23 23:37:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4
[2024-11-23 23:37:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5
[2024-11-23 23:37:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6
[2024-11-23 23:37:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7
[2024-11-23 23:37:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8
[2024-11-23 23:37:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9
[2024-11-23 23:37:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10
[2024-11-23 23:37:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11
[2024-11-23 23:37:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNN
[2024-11-23 23:37:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNN
[2024-11-23 23:37:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0
[2024-11-23 23:37:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1
[2024-11-23 23:37:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2
[2024-11-23 23:37:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3
[2024-11-23 23:37:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4
[2024-11-23 23:37:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5
[2024-11-23 23:37:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6
[2024-11-23 23:37:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7
[2024-11-23 23:37:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8
[2024-11-23 23:37:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9
[2024-11-23 23:37:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10
[2024-11-23 23:37:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#11
[2024-11-23 23:37:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 23:37:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 23:37:52,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 23:37:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0
[2024-11-23 23:37:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1
[2024-11-23 23:37:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2
[2024-11-23 23:37:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3
[2024-11-23 23:37:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4
[2024-11-23 23:37:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5
[2024-11-23 23:37:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6
[2024-11-23 23:37:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7
[2024-11-23 23:37:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8
[2024-11-23 23:37:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9
[2024-11-23 23:37:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10
[2024-11-23 23:37:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11
[2024-11-23 23:37:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0
[2024-11-23 23:37:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1
[2024-11-23 23:37:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2
[2024-11-23 23:37:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3
[2024-11-23 23:37:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4
[2024-11-23 23:37:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5
[2024-11-23 23:37:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6
[2024-11-23 23:37:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7
[2024-11-23 23:37:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8
[2024-11-23 23:37:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9
[2024-11-23 23:37:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10
[2024-11-23 23:37:52,480 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11
[2024-11-23 23:37:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-23 23:37:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-23 23:37:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-23 23:37:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-23 23:37:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3
[2024-11-23 23:37:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4
[2024-11-23 23:37:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5
[2024-11-23 23:37:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6
[2024-11-23 23:37:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7
[2024-11-23 23:37:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8
[2024-11-23 23:37:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9
[2024-11-23 23:37:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10
[2024-11-23 23:37:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11
[2024-11-23 23:37:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_affine_matmul
[2024-11-23 23:37:52,482 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_affine_matmul
[2024-11-23 23:37:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID
[2024-11-23 23:37:52,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID
[2024-11-23 23:37:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-23 23:37:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-23 23:37:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-23 23:37:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-11-23 23:37:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3
[2024-11-23 23:37:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4
[2024-11-23 23:37:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5
[2024-11-23 23:37:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6
[2024-11-23 23:37:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7
[2024-11-23 23:37:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8
[2024-11-23 23:37:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9
[2024-11-23 23:37:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10
[2024-11-23 23:37:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11
[2024-11-23 23:37:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0
[2024-11-23 23:37:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1
[2024-11-23 23:37:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2
[2024-11-23 23:37:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3
[2024-11-23 23:37:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4
[2024-11-23 23:37:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5
[2024-11-23 23:37:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6
[2024-11-23 23:37:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7
[2024-11-23 23:37:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8
[2024-11-23 23:37:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9
[2024-11-23 23:37:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10
[2024-11-23 23:37:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11
[2024-11-23 23:37:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0
[2024-11-23 23:37:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1
[2024-11-23 23:37:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2
[2024-11-23 23:37:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3
[2024-11-23 23:37:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4
[2024-11-23 23:37:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5
[2024-11-23 23:37:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6
[2024-11-23 23:37:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7
[2024-11-23 23:37:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8
[2024-11-23 23:37:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9
[2024-11-23 23:37:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10
[2024-11-23 23:37:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11
[2024-11-23 23:37:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNNcell
[2024-11-23 23:37:52,486 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNNcell
[2024-11-23 23:37:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-11-23 23:37:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-11-23 23:37:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2024-11-23 23:37:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3
[2024-11-23 23:37:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4
[2024-11-23 23:37:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5
[2024-11-23 23:37:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6
[2024-11-23 23:37:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7
[2024-11-23 23:37:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8
[2024-11-23 23:37:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9
[2024-11-23 23:37:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10
[2024-11-23 23:37:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11
[2024-11-23 23:37:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0
[2024-11-23 23:37:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1
[2024-11-23 23:37:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2
[2024-11-23 23:37:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3
[2024-11-23 23:37:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4
[2024-11-23 23:37:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5
[2024-11-23 23:37:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6
[2024-11-23 23:37:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7
[2024-11-23 23:37:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8
[2024-11-23 23:37:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9
[2024-11-23 23:37:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10
[2024-11-23 23:37:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11
[2024-11-23 23:37:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-23 23:37:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-23 23:37:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-11-23 23:37:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3
[2024-11-23 23:37:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4
[2024-11-23 23:37:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5
[2024-11-23 23:37:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6
[2024-11-23 23:37:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7
[2024-11-23 23:37:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8
[2024-11-23 23:37:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9
[2024-11-23 23:37:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10
[2024-11-23 23:37:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11
[2024-11-23 23:37:52,812 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 23:37:52,816 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 23:38:06,162 INFO L? ?]: Removed 154 outVars from TransFormulas that were not future-live.
[2024-11-23 23:38:06,163 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 23:38:06,180 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 23:38:06,182 INFO L312 CfgBuilder]: Removed 20 assume(true) statements.
[2024-11-23 23:38:06,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:38:06 BoogieIcfgContainer
[2024-11-23 23:38:06,182 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 23:38:06,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 23:38:06,186 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 23:38:06,192 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 23:38:06,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:37:49" (1/3) ...
[2024-11-23 23:38:06,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb85a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:38:06, skipping insertion in model container
[2024-11-23 23:38:06,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:52" (2/3) ...
[2024-11-23 23:38:06,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb85a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:38:06, skipping insertion in model container
[2024-11-23 23:38:06,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:38:06" (3/3) ...
[2024-11-23 23:38:06,196 INFO L128 eAbstractionObserver]: Analyzing ICFG tanh_w4_r2_case_0_safe.c-amalgamation.i
[2024-11-23 23:38:06,215 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 23:38:06,217 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG tanh_w4_r2_case_0_safe.c-amalgamation.i that has 17 procedures, 177 locations, 1 initial locations, 32 loop locations, and 1 error locations.
[2024-11-23 23:38:06,282 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 23:38:06,298 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;@5097eaf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 23:38:06,299 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-23 23:38:06,304 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 119 states have (on average 1.5126050420168067) internal successors, (180), 120 states have internal predecessors, (180), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-23 23:38:06,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-23 23:38:06,312 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:38:06,313 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:38:06,313 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:38:06,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:38:06,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1752628958, now seen corresponding path program 1 times
[2024-11-23 23:38:06,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:38:06,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004691638]
[2024-11-23 23:38:06,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:38:06,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:38:06,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 23:38:06,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-23 23:38:06,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2024-11-23 23:38:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:38:07,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-23 23:38:07,527 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:38:07,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:38:07,546 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:38:07,546 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:38:07,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004691638]
[2024-11-23 23:38:07,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004691638] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:38:07,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:38:07,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 23:38:07,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211420969]
[2024-11-23 23:38:07,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:38:07,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-23 23:38:07,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:38:07,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-23 23:38:07,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 23:38:07,581 INFO L87 Difference]: Start difference. First operand has 133 states, 119 states have (on average 1.5126050420168067) internal successors, (180), 120 states have internal predecessors, (180), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-23 23:38:07,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:38:07,629 INFO L93 Difference]: Finished difference Result 262 states and 388 transitions.
[2024-11-23 23:38:07,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 23:38:07,632 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2024-11-23 23:38:07,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:38:07,640 INFO L225 Difference]: With dead ends: 262
[2024-11-23 23:38:07,641 INFO L226 Difference]: Without dead ends: 129
[2024-11-23 23:38:07,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 23:38:07,652 INFO L435 NwaCegarLoop]: 172 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, 172 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 23:38:07,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 23:38:07,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states.
[2024-11-23 23:38:07,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129.
[2024-11-23 23:38:07,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 116 states have (on average 1.3275862068965518) internal successors, (154), 116 states have internal predecessors, (154), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-23 23:38:07,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 168 transitions.
[2024-11-23 23:38:07,713 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 168 transitions. Word has length 17
[2024-11-23 23:38:07,714 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:38:07,714 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 168 transitions.
[2024-11-23 23:38:07,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-23 23:38:07,715 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 168 transitions.
[2024-11-23 23:38:07,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-23 23:38:07,715 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:38:07,715 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:38:07,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2024-11-23 23:38:07,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:38:07,916 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:38:07,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:38:07,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1996825343, now seen corresponding path program 1 times
[2024-11-23 23:38:07,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:38:07,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439247969]
[2024-11-23 23:38:07,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:38:07,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:38:07,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 23:38:07,920 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-23 23:38:07,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2024-11-23 23:38:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:38:09,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-23 23:38:09,143 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:38:09,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:38:09,630 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:38:09,630 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:38:09,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439247969]
[2024-11-23 23:38:09,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1439247969] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:38:09,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:38:09,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-23 23:38:09,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624299602]
[2024-11-23 23:38:09,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:38:09,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 23:38:09,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:38:09,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 23:38:09,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:38:09,634 INFO L87 Difference]: Start difference. First operand 129 states and 168 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-23 23:38:09,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:38:09,897 INFO L93 Difference]: Finished difference Result 140 states and 180 transitions.
[2024-11-23 23:38:09,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-23 23:38:09,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2024-11-23 23:38:09,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:38:09,902 INFO L225 Difference]: With dead ends: 140
[2024-11-23 23:38:09,903 INFO L226 Difference]: Without dead ends: 119
[2024-11-23 23:38:09,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:38:09,904 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 16 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-23 23:38:09,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 642 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-23 23:38:09,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states.
[2024-11-23 23:38:09,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119.
[2024-11-23 23:38:09,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 107 states have (on average 1.3177570093457944) internal successors, (141), 107 states have internal predecessors, (141), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-23 23:38:09,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 153 transitions.
[2024-11-23 23:38:09,917 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 153 transitions. Word has length 17
[2024-11-23 23:38:09,917 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:38:09,917 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 153 transitions.
[2024-11-23 23:38:09,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-23 23:38:09,917 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 153 transitions.
[2024-11-23 23:38:09,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-23 23:38:09,918 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:38:09,918 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:38:09,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2024-11-23 23:38:10,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:38:10,119 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:38:10,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:38:10,120 INFO L85 PathProgramCache]: Analyzing trace with hash 702928858, now seen corresponding path program 1 times
[2024-11-23 23:38:10,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:38:10,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54182020]
[2024-11-23 23:38:10,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:38:10,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:38:10,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 23:38:10,124 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-23 23:38:10,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2024-11-23 23:38:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:38:11,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-23 23:38:11,337 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:38:12,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:38:12,910 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:38:12,910 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:38:12,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54182020]
[2024-11-23 23:38:12,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54182020] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:38:12,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:38:12,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-23 23:38:12,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629694879]
[2024-11-23 23:38:12,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:38:12,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-23 23:38:12,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:38:12,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-23 23:38:12,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-23 23:38:12,913 INFO L87 Difference]: Start difference. First operand 119 states and 153 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-23 23:38:20,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-23 23:38:24,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:38:28,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:38:32,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-23 23:38:36,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:38:39,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:38:39,243 INFO L93 Difference]: Finished difference Result 140 states and 179 transitions.
[2024-11-23 23:38:39,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-23 23:38:39,246 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2024-11-23 23:38:39,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:38:39,248 INFO L225 Difference]: With dead ends: 140
[2024-11-23 23:38:39,248 INFO L226 Difference]: Without dead ends: 128
[2024-11-23 23:38:39,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-23 23:38:39,249 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 157 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time
[2024-11-23 23:38:39,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 801 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 5 Unknown, 0 Unchecked, 26.3s Time]
[2024-11-23 23:38:39,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states.
[2024-11-23 23:38:39,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 120.
[2024-11-23 23:38:39,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 108 states have (on average 1.3148148148148149) internal successors, (142), 108 states have internal predecessors, (142), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-23 23:38:39,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 154 transitions.
[2024-11-23 23:38:39,270 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 154 transitions. Word has length 17
[2024-11-23 23:38:39,270 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:38:39,270 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 154 transitions.
[2024-11-23 23:38:39,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-23 23:38:39,270 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 154 transitions.
[2024-11-23 23:38:39,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-11-23 23:38:39,272 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:38:39,272 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:38:39,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0
[2024-11-23 23:38:39,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:38:39,476 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:38:39,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:38:39,476 INFO L85 PathProgramCache]: Analyzing trace with hash -953891747, now seen corresponding path program 1 times
[2024-11-23 23:38:39,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:38:39,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953097985]
[2024-11-23 23:38:39,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:38:39,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:38:39,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 23:38:39,481 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-23 23:38:39,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2024-11-23 23:38:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:38:40,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-23 23:38:40,654 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:38:54,167 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:38:54,167 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:39:05,731 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:39:05,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953097985]
[2024-11-23 23:39:05,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953097985] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:39:05,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [409735161]
[2024-11-23 23:39:05,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:39:05,731 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-23 23:39:05,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-23 23:39:05,734 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-23 23:39:05,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2024-11-23 23:39:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:39:07,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-23 23:39:07,029 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:39:07,753 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-23 23:39:07,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:39:07,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [409735161] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:39:07,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 23:39:07,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14
[2024-11-23 23:39:07,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517875844]
[2024-11-23 23:39:07,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:39:07,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 23:39:07,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:39:07,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 23:39:07,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306
[2024-11-23 23:39:07,756 INFO L87 Difference]: Start difference. First operand 120 states and 154 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6)
[2024-11-23 23:39:07,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:39:07,942 INFO L93 Difference]: Finished difference Result 239 states and 310 transitions.
[2024-11-23 23:39:07,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 23:39:07,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 63
[2024-11-23 23:39:07,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:39:07,945 INFO L225 Difference]: With dead ends: 239
[2024-11-23 23:39:07,945 INFO L226 Difference]: Without dead ends: 128
[2024-11-23 23:39:07,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 125 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306
[2024-11-23 23:39:07,947 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 3 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-23 23:39:07,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 306 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-23 23:39:07,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states.
[2024-11-23 23:39:07,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128.
[2024-11-23 23:39:07,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 115 states have (on average 1.3043478260869565) internal successors, (150), 115 states have internal predecessors, (150), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-23 23:39:07,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 164 transitions.
[2024-11-23 23:39:07,963 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 164 transitions. Word has length 63
[2024-11-23 23:39:07,963 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:39:07,963 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 164 transitions.
[2024-11-23 23:39:07,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6)
[2024-11-23 23:39:07,964 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 164 transitions.
[2024-11-23 23:39:07,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2024-11-23 23:39:07,966 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:39:07,966 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:39:07,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0
[2024-11-23 23:39:08,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0
[2024-11-23 23:39:08,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:39:08,367 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:39:08,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:39:08,368 INFO L85 PathProgramCache]: Analyzing trace with hash -379142189, now seen corresponding path program 1 times
[2024-11-23 23:39:08,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:39:08,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [142211661]
[2024-11-23 23:39:08,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:39:08,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:39:08,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 23:39:08,372 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-23 23:39:08,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2024-11-23 23:39:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:39:09,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-23 23:39:09,566 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:39:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:39:22,998 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:39:34,579 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:39:34,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [142211661]
[2024-11-23 23:39:34,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [142211661] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:39:34,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1497261137]
[2024-11-23 23:39:34,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:39:34,580 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-23 23:39:34,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-23 23:39:34,582 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-23 23:39:34,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process
[2024-11-23 23:39:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:39:35,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-23 23:39:36,003 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:39:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-23 23:39:45,058 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:39:58,315 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-23 23:39:58,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1497261137] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:39:58,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:39:58,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25
[2024-11-23 23:39:58,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475148959]
[2024-11-23 23:39:58,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:39:58,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-23 23:39:58,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:39:58,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-23 23:39:58,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812
[2024-11-23 23:39:58,319 INFO L87 Difference]: Start difference. First operand 128 states and 164 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6)
[2024-11-23 23:40:04,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:40:04,283 INFO L93 Difference]: Finished difference Result 165 states and 212 transitions.
[2024-11-23 23:40:04,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-23 23:40:04,288 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 65
[2024-11-23 23:40:04,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:40:04,289 INFO L225 Difference]: With dead ends: 165
[2024-11-23 23:40:04,289 INFO L226 Difference]: Without dead ends: 124
[2024-11-23 23:40:04,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 184 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122
[2024-11-23 23:40:04,292 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 211 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2024-11-23 23:40:04,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 677 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2024-11-23 23:40:04,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states.
[2024-11-23 23:40:04,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124.
[2024-11-23 23:40:04,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 111 states have internal predecessors, (144), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-23 23:40:04,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 158 transitions.
[2024-11-23 23:40:04,321 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 158 transitions. Word has length 65
[2024-11-23 23:40:04,321 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:40:04,321 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 158 transitions.
[2024-11-23 23:40:04,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6)
[2024-11-23 23:40:04,322 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 158 transitions.
[2024-11-23 23:40:04,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2024-11-23 23:40:04,324 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:40:04,324 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:40:04,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0
[2024-11-23 23:40:04,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2024-11-23 23:40:04,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:40:04,726 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:40:04,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:40:04,727 INFO L85 PathProgramCache]: Analyzing trace with hash -2086225292, now seen corresponding path program 1 times
[2024-11-23 23:40:04,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:40:04,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492423162]
[2024-11-23 23:40:04,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:40:04,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:40:04,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 23:40:04,729 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-23 23:40:04,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2024-11-23 23:40:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:40:06,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-23 23:40:06,335 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:40:20,321 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:40:20,321 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:40:33,408 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:40:33,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492423162]
[2024-11-23 23:40:33,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492423162] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:40:33,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1255220207]
[2024-11-23 23:40:33,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:40:33,409 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-23 23:40:33,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-23 23:40:33,411 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-23 23:40:33,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process
[2024-11-23 23:40:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:40:34,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-23 23:40:34,827 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:40:44,713 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-23 23:40:44,713 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:40:58,751 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-23 23:40:58,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1255220207] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:40:58,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:40:58,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25
[2024-11-23 23:40:58,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184824290]
[2024-11-23 23:40:58,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:40:58,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-23 23:40:58,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:40:58,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-23 23:40:58,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812
[2024-11-23 23:40:58,754 INFO L87 Difference]: Start difference. First operand 124 states and 158 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6)
[2024-11-23 23:41:04,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:41:04,878 INFO L93 Difference]: Finished difference Result 161 states and 206 transitions.
[2024-11-23 23:41:04,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-23 23:41:04,881 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 66
[2024-11-23 23:41:04,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:41:04,883 INFO L225 Difference]: With dead ends: 161
[2024-11-23 23:41:04,883 INFO L226 Difference]: Without dead ends: 120
[2024-11-23 23:41:04,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 187 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122
[2024-11-23 23:41:04,886 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 197 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2024-11-23 23:41:04,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 759 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time]
[2024-11-23 23:41:04,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states.
[2024-11-23 23:41:04,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120.
[2024-11-23 23:41:04,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 107 states have (on average 1.2897196261682242) internal successors, (138), 107 states have internal predecessors, (138), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-23 23:41:04,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 152 transitions.
[2024-11-23 23:41:04,909 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 152 transitions. Word has length 66
[2024-11-23 23:41:04,909 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:41:04,909 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 152 transitions.
[2024-11-23 23:41:04,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6)
[2024-11-23 23:41:04,910 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 152 transitions.
[2024-11-23 23:41:04,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-11-23 23:41:04,911 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:41:04,911 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:41:04,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0
[2024-11-23 23:41:05,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0
[2024-11-23 23:41:05,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:41:05,312 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:41:05,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:41:05,313 INFO L85 PathProgramCache]: Analyzing trace with hash 986654574, now seen corresponding path program 1 times
[2024-11-23 23:41:05,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:41:05,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915587438]
[2024-11-23 23:41:05,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:41:05,315 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:41:05,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 23:41:05,317 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-23 23:41:05,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process
[2024-11-23 23:41:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:41:06,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-23 23:41:06,710 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:41:21,068 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:41:21,068 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:41:33,888 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:41:33,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915587438]
[2024-11-23 23:41:33,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915587438] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:41:33,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [498714343]
[2024-11-23 23:41:33,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:41:33,888 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-23 23:41:33,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-23 23:41:33,890 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-23 23:41:33,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process
[2024-11-23 23:41:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:41:35,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-23 23:41:35,371 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:41:44,551 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-23 23:41:44,551 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:41:57,762 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-23 23:41:57,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [498714343] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:41:57,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:41:57,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25
[2024-11-23 23:41:57,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702825943]
[2024-11-23 23:41:57,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:41:57,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-23 23:41:57,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:41:57,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-23 23:41:57,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812
[2024-11-23 23:41:57,764 INFO L87 Difference]: Start difference. First operand 120 states and 152 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6)
[2024-11-23 23:42:03,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:42:03,026 INFO L93 Difference]: Finished difference Result 157 states and 200 transitions.
[2024-11-23 23:42:03,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-23 23:42:03,029 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 68
[2024-11-23 23:42:03,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:42:03,030 INFO L225 Difference]: With dead ends: 157
[2024-11-23 23:42:03,030 INFO L226 Difference]: Without dead ends: 116
[2024-11-23 23:42:03,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 193 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122
[2024-11-23 23:42:03,032 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 199 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2024-11-23 23:42:03,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 619 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2024-11-23 23:42:03,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states.
[2024-11-23 23:42:03,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116.
[2024-11-23 23:42:03,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 103 states have (on average 1.2815533980582525) internal successors, (132), 103 states have internal predecessors, (132), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-23 23:42:03,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions.
[2024-11-23 23:42:03,047 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 146 transitions. Word has length 68
[2024-11-23 23:42:03,047 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:42:03,048 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 146 transitions.
[2024-11-23 23:42:03,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6)
[2024-11-23 23:42:03,048 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 146 transitions.
[2024-11-23 23:42:03,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2024-11-23 23:42:03,049 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:42:03,049 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:42:03,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0
[2024-11-23 23:42:03,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0
[2024-11-23 23:42:03,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt
[2024-11-23 23:42:03,450 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:42:03,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:42:03,451 INFO L85 PathProgramCache]: Analyzing trace with hash 969731017, now seen corresponding path program 1 times
[2024-11-23 23:42:03,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:42:03,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318468303]
[2024-11-23 23:42:03,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:42:03,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:42:03,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 23:42:03,454 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-23 23:42:03,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process
[2024-11-23 23:42:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:42:04,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-23 23:42:04,674 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:42:18,403 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:42:18,403 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:42:30,066 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:42:30,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318468303]
[2024-11-23 23:42:30,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318468303] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:42:30,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1464646870]
[2024-11-23 23:42:30,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:42:30,066 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-23 23:42:30,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-23 23:42:30,068 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-23 23:42:30,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process
[2024-11-23 23:42:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:42:31,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-23 23:42:31,618 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:42:34,382 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:42:34,382 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:42:34,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1464646870] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:42:34,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 23:42:34,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17
[2024-11-23 23:42:34,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254554558]
[2024-11-23 23:42:34,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:42:34,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 23:42:34,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:42:34,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 23:42:34,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420
[2024-11-23 23:42:34,383 INFO L87 Difference]: Start difference. First operand 116 states and 146 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7)
[2024-11-23 23:42:35,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:42:35,195 INFO L93 Difference]: Finished difference Result 234 states and 299 transitions.
[2024-11-23 23:42:35,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 23:42:35,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) Word has length 69
[2024-11-23 23:42:35,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:42:35,197 INFO L225 Difference]: With dead ends: 234
[2024-11-23 23:42:35,197 INFO L226 Difference]: Without dead ends: 124
[2024-11-23 23:42:35,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 136 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420
[2024-11-23 23:42:35,198 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 37 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-23 23:42:35,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 503 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-23 23:42:35,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states.
[2024-11-23 23:42:35,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 117.
[2024-11-23 23:42:35,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 104 states have (on average 1.2788461538461537) internal successors, (133), 104 states have internal predecessors, (133), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-23 23:42:35,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions.
[2024-11-23 23:42:35,221 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 147 transitions. Word has length 69
[2024-11-23 23:42:35,222 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:42:35,222 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 147 transitions.
[2024-11-23 23:42:35,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7)
[2024-11-23 23:42:35,222 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 147 transitions.
[2024-11-23 23:42:35,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-23 23:42:35,223 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:42:35,223 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:42:35,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0
[2024-11-23 23:42:35,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0
[2024-11-23 23:42:35,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:42:35,625 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:42:35,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:42:35,626 INFO L85 PathProgramCache]: Analyzing trace with hash 134478665, now seen corresponding path program 1 times
[2024-11-23 23:42:35,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:42:35,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811072849]
[2024-11-23 23:42:35,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:42:35,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:42:35,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 23:42:35,631 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-23 23:42:35,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process
[2024-11-23 23:42:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:42:37,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-23 23:42:37,233 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:42:52,062 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-23 23:42:52,062 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:43:04,126 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:43:04,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811072849]
[2024-11-23 23:43:04,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811072849] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:43:04,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [620602158]
[2024-11-23 23:43:04,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:43:04,127 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-23 23:43:04,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-23 23:43:04,129 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-23 23:43:04,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process
[2024-11-23 23:43:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:43:06,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-23 23:43:06,691 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:43:13,898 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2024-11-23 23:43:13,898 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:43:20,822 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2024-11-23 23:43:20,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [620602158] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:43:20,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:43:20,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13, 7] total 20
[2024-11-23 23:43:20,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542894446]
[2024-11-23 23:43:20,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:43:20,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 23:43:20,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:43:20,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 23:43:20,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552
[2024-11-23 23:43:20,824 INFO L87 Difference]: Start difference. First operand 117 states and 147 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2024-11-23 23:43:24,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-23 23:43:28,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-23 23:43:32,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-23 23:43:34,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:43:34,697 INFO L93 Difference]: Finished difference Result 149 states and 187 transitions.
[2024-11-23 23:43:34,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 23:43:34,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 77
[2024-11-23 23:43:34,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:43:34,704 INFO L225 Difference]: With dead ends: 149
[2024-11-23 23:43:34,704 INFO L226 Difference]: Without dead ends: 120
[2024-11-23 23:43:34,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 224 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552
[2024-11-23 23:43:34,706 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 35 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time
[2024-11-23 23:43:34,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 515 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 3 Unknown, 0 Unchecked, 13.8s Time]
[2024-11-23 23:43:34,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states.
[2024-11-23 23:43:34,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118.
[2024-11-23 23:43:34,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 105 states have (on average 1.276190476190476) internal successors, (134), 105 states have internal predecessors, (134), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-23 23:43:34,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 148 transitions.
[2024-11-23 23:43:34,724 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 148 transitions. Word has length 77
[2024-11-23 23:43:34,724 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:43:34,724 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 148 transitions.
[2024-11-23 23:43:34,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2024-11-23 23:43:34,724 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 148 transitions.
[2024-11-23 23:43:34,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-23 23:43:34,725 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:43:34,725 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:43:34,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0
[2024-11-23 23:43:34,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0
[2024-11-23 23:43:35,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt
[2024-11-23 23:43:35,126 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:43:35,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:43:35,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1763436233, now seen corresponding path program 1 times
[2024-11-23 23:43:35,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:43:35,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499008418]
[2024-11-23 23:43:35,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:43:35,128 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:43:35,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 23:43:35,129 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-23 23:43:35,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process
[2024-11-23 23:43:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:43:36,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-23 23:43:36,502 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:43:53,681 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-23 23:43:53,681 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:44:06,740 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:44:06,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499008418]
[2024-11-23 23:44:06,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499008418] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:44:06,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1739958010]
[2024-11-23 23:44:06,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:44:06,741 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-23 23:44:06,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-23 23:44:06,743 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-23 23:44:06,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process
[2024-11-23 23:44:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:44:08,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-23 23:44:08,464 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:44:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2024-11-23 23:44:11,364 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:44:11,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1739958010] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:44:11,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 23:44:11,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16
[2024-11-23 23:44:11,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525305770]
[2024-11-23 23:44:11,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:44:11,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 23:44:11,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:44:11,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 23:44:11,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380
[2024-11-23 23:44:11,368 INFO L87 Difference]: Start difference. First operand 118 states and 148 transitions. Second operand has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2024-11-23 23:44:12,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:44:12,538 INFO L93 Difference]: Finished difference Result 125 states and 154 transitions.
[2024-11-23 23:44:12,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 23:44:12,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 77
[2024-11-23 23:44:12,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:44:12,541 INFO L225 Difference]: With dead ends: 125
[2024-11-23 23:44:12,541 INFO L226 Difference]: Without dead ends: 107
[2024-11-23 23:44:12,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 153 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420
[2024-11-23 23:44:12,542 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 14 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-23 23:44:12,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 511 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-23 23:44:12,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states.
[2024-11-23 23:44:12,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107.
[2024-11-23 23:44:12,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 95 states have (on average 1.263157894736842) internal successors, (120), 95 states have internal predecessors, (120), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-23 23:44:12,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 132 transitions.
[2024-11-23 23:44:12,560 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 132 transitions. Word has length 77
[2024-11-23 23:44:12,560 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:44:12,560 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 132 transitions.
[2024-11-23 23:44:12,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2024-11-23 23:44:12,561 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 132 transitions.
[2024-11-23 23:44:12,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-11-23 23:44:12,563 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:44:12,564 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:44:12,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0
[2024-11-23 23:44:12,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0
[2024-11-23 23:44:12,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt
[2024-11-23 23:44:12,965 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:44:12,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:44:12,965 INFO L85 PathProgramCache]: Analyzing trace with hash -641948019, now seen corresponding path program 1 times
[2024-11-23 23:44:12,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:44:12,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865761854]
[2024-11-23 23:44:12,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:44:12,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:44:12,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 23:44:12,967 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-23 23:44:12,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process
[2024-11-23 23:44:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:44:14,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-23 23:44:14,364 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:44:31,609 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-23 23:44:31,609 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:44:45,171 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:44:45,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865761854]
[2024-11-23 23:44:45,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1865761854] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:44:45,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [79072145]
[2024-11-23 23:44:45,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:44:45,172 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-23 23:44:45,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-23 23:44:45,174 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-23 23:44:45,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process
[2024-11-23 23:44:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:44:47,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-23 23:44:47,897 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:44:58,544 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2024-11-23 23:44:58,545 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:45:09,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [79072145] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:45:09,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:45:09,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 17
[2024-11-23 23:45:09,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789437983]
[2024-11-23 23:45:09,848 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:45:09,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-23 23:45:09,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:45:09,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-23 23:45:09,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702
[2024-11-23 23:45:09,850 INFO L87 Difference]: Start difference. First operand 107 states and 132 transitions. Second operand has 17 states, 14 states have (on average 7.5) internal successors, (105), 17 states have internal predecessors, (105), 8 states have call successors, (11), 2 states have call predecessors, (11), 8 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13)
[2024-11-23 23:45:13,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:45:18,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:45:22,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:45:26,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:45:30,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:45:34,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:45:38,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:45:42,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:45:46,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:45:50,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:45:54,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:45:58,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:46:02,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:46:09,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:46:15,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:46:17,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:46:21,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:46:23,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:46:27,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:46:38,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:46:49,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:46:54,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:47:01,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:47:05,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:47:05,891 INFO L93 Difference]: Finished difference Result 343 states and 441 transitions.
[2024-11-23 23:47:05,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states.
[2024-11-23 23:47:05,893 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 7.5) internal successors, (105), 17 states have internal predecessors, (105), 8 states have call successors, (11), 2 states have call predecessors, (11), 8 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 79
[2024-11-23 23:47:05,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:47:05,894 INFO L225 Difference]: With dead ends: 343
[2024-11-23 23:47:05,895 INFO L226 Difference]: Without dead ends: 110
[2024-11-23 23:47:05,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 175 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 29.8s TimeCoverageRelationStatistics Valid=212, Invalid=1270, Unknown=0, NotChecked=0, Total=1482
[2024-11-23 23:47:05,897 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 316 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 19 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 104.4s IncrementalHoareTripleChecker+Time
[2024-11-23 23:47:05,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1291 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 484 Invalid, 19 Unknown, 0 Unchecked, 104.4s Time]
[2024-11-23 23:47:05,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states.
[2024-11-23 23:47:05,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109.
[2024-11-23 23:47:05,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 97 states have (on average 1.2577319587628866) internal successors, (122), 97 states have internal predecessors, (122), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-23 23:47:05,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions.
[2024-11-23 23:47:05,911 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 79
[2024-11-23 23:47:05,912 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:47:05,912 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions.
[2024-11-23 23:47:05,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 7.5) internal successors, (105), 17 states have internal predecessors, (105), 8 states have call successors, (11), 2 states have call predecessors, (11), 8 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13)
[2024-11-23 23:47:05,912 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions.
[2024-11-23 23:47:05,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2024-11-23 23:47:05,913 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:47:05,913 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:47:05,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0
[2024-11-23 23:47:06,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0
[2024-11-23 23:47:06,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:47:06,314 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:47:06,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:47:06,315 INFO L85 PathProgramCache]: Analyzing trace with hash -2022787003, now seen corresponding path program 1 times
[2024-11-23 23:47:06,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:47:06,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068056012]
[2024-11-23 23:47:06,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:47:06,315 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:47:06,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 23:47:06,317 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-23 23:47:06,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process
[2024-11-23 23:47:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:47:07,890 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-23 23:47:07,892 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:47:27,354 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-23 23:47:27,354 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:47:42,152 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:47:42,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068056012]
[2024-11-23 23:47:42,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068056012] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:47:42,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [151586052]
[2024-11-23 23:47:42,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:47:42,152 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-23 23:47:42,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-23 23:47:42,154 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-23 23:47:42,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process
[2024-11-23 23:47:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:47:44,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-23 23:47:44,229 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:47:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-23 23:47:48,159 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:47:56,065 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-23 23:47:56,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [151586052] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:47:56,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:47:56,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14, 6] total 20
[2024-11-23 23:47:56,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371405224]
[2024-11-23 23:47:56,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:47:56,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 23:47:56,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:47:56,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 23:47:56,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552
[2024-11-23 23:47:56,066 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-23 23:47:58,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-23 23:47:59,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:47:59,471 INFO L93 Difference]: Finished difference Result 231 states and 289 transitions.
[2024-11-23 23:47:59,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 23:47:59,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 83
[2024-11-23 23:47:59,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:47:59,473 INFO L225 Difference]: With dead ends: 231
[2024-11-23 23:47:59,473 INFO L226 Difference]: Without dead ends: 110
[2024-11-23 23:47:59,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 246 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552
[2024-11-23 23:47:59,475 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 22 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2024-11-23 23:47:59,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 609 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2024-11-23 23:47:59,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states.
[2024-11-23 23:47:59,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110.
[2024-11-23 23:47:59,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 98 states have (on average 1.2551020408163265) internal successors, (123), 98 states have internal predecessors, (123), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-23 23:47:59,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 135 transitions.
[2024-11-23 23:47:59,501 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 135 transitions. Word has length 83
[2024-11-23 23:47:59,501 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:47:59,501 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 135 transitions.
[2024-11-23 23:47:59,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-23 23:47:59,501 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 135 transitions.
[2024-11-23 23:47:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2024-11-23 23:47:59,502 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:47:59,504 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:47:59,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0
[2024-11-23 23:47:59,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0
[2024-11-23 23:47:59,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:47:59,909 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:47:59,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:47:59,910 INFO L85 PathProgramCache]: Analyzing trace with hash -710064295, now seen corresponding path program 1 times
[2024-11-23 23:47:59,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:47:59,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097185859]
[2024-11-23 23:47:59,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:47:59,911 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:47:59,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 23:47:59,913 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-23 23:47:59,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process
[2024-11-23 23:48:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:48:01,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-23 23:48:01,713 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:48:23,515 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-11-23 23:48:23,515 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:48:38,877 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:48:38,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097185859]
[2024-11-23 23:48:38,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097185859] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:48:38,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2028836886]
[2024-11-23 23:48:38,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:48:38,878 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-23 23:48:38,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-23 23:48:38,880 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-23 23:48:38,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process
[2024-11-23 23:48:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:48:41,058 INFO L256 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-23 23:48:41,060 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:48:48,185 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-23 23:48:48,185 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:49:01,495 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-23 23:49:01,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2028836886] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:49:01,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:49:01,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 23
[2024-11-23 23:49:01,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229499853]
[2024-11-23 23:49:01,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:49:01,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-11-23 23:49:01,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:49:01,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-23 23:49:01,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=621, Unknown=0, NotChecked=0, Total=702
[2024-11-23 23:49:01,499 INFO L87 Difference]: Start difference. First operand 110 states and 135 transitions. Second operand has 23 states, 20 states have (on average 8.2) internal successors, (164), 22 states have internal predecessors, (164), 13 states have call successors, (17), 4 states have call predecessors, (17), 9 states have return successors, (17), 10 states have call predecessors, (17), 13 states have call successors, (17)
[2024-11-23 23:49:05,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:49:09,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:49:13,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:49:17,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:49:22,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:49:26,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:49:30,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:49:34,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:49:38,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:49:46,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:49:50,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:50:05,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:50:09,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:50:14,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:50:22,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:50:27,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:50:55,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:51:21,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:51:22,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:51:22,701 INFO L93 Difference]: Finished difference Result 379 states and 485 transitions.
[2024-11-23 23:51:22,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states.
[2024-11-23 23:51:22,705 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 8.2) internal successors, (164), 22 states have internal predecessors, (164), 13 states have call successors, (17), 4 states have call predecessors, (17), 9 states have return successors, (17), 10 states have call predecessors, (17), 13 states have call successors, (17) Word has length 91
[2024-11-23 23:51:22,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:51:22,706 INFO L225 Difference]: With dead ends: 379
[2024-11-23 23:51:22,706 INFO L226 Difference]: Without dead ends: 130
[2024-11-23 23:51:22,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 267 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 63.5s TimeCoverageRelationStatistics Valid=602, Invalid=3058, Unknown=0, NotChecked=0, Total=3660
[2024-11-23 23:51:22,708 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 425 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 34 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 99.0s IncrementalHoareTripleChecker+Time
[2024-11-23 23:51:22,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 1512 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 670 Invalid, 16 Unknown, 0 Unchecked, 99.0s Time]
[2024-11-23 23:51:22,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states.
[2024-11-23 23:51:22,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 123.
[2024-11-23 23:51:22,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 110 states have (on average 1.2545454545454546) internal successors, (138), 111 states have internal predecessors, (138), 6 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7)
[2024-11-23 23:51:22,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 151 transitions.
[2024-11-23 23:51:22,733 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 151 transitions. Word has length 91
[2024-11-23 23:51:22,733 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:51:22,733 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 151 transitions.
[2024-11-23 23:51:22,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 8.2) internal successors, (164), 22 states have internal predecessors, (164), 13 states have call successors, (17), 4 states have call predecessors, (17), 9 states have return successors, (17), 10 states have call predecessors, (17), 13 states have call successors, (17)
[2024-11-23 23:51:22,734 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 151 transitions.
[2024-11-23 23:51:22,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96
[2024-11-23 23:51:22,735 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:51:22,736 INFO L218 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:51:22,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0
[2024-11-23 23:51:22,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0
[2024-11-23 23:51:23,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:51:23,137 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:51:23,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:51:23,137 INFO L85 PathProgramCache]: Analyzing trace with hash -723808299, now seen corresponding path program 1 times
[2024-11-23 23:51:23,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:51:23,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323364536]
[2024-11-23 23:51:23,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:51:23,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-23 23:51:23,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 23:51:23,140 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-23 23:51:23,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process
[2024-11-23 23:51:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:51:25,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-11-23 23:51:25,024 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:51:47,750 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-11-23 23:51:47,750 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:52:03,092 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:52:03,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323364536]
[2024-11-23 23:52:03,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323364536] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:52:03,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1895018761]
[2024-11-23 23:52:03,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:52:03,093 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-23 23:52:03,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-23 23:52:03,095 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-23 23:52:03,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cb6baf-3695-499a-b3ea-41d83978079d/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process
[2024-11-23 23:52:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:52:05,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-23 23:52:05,475 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:52:12,636 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2024-11-23 23:52:12,636 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:52:25,941 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2024-11-23 23:52:25,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1895018761] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:52:25,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:52:25,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8, 8] total 24
[2024-11-23 23:52:25,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906351467]
[2024-11-23 23:52:25,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:52:25,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-11-23 23:52:25,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:52:25,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-23 23:52:25,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=675, Unknown=0, NotChecked=0, Total=756
[2024-11-23 23:52:25,944 INFO L87 Difference]: Start difference. First operand 123 states and 151 transitions. Second operand has 24 states, 21 states have (on average 7.571428571428571) internal successors, (159), 23 states have internal predecessors, (159), 10 states have call successors, (15), 3 states have call predecessors, (15), 9 states have return successors, (15), 9 states have call predecessors, (15), 10 states have call successors, (15)
[2024-11-23 23:52:30,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:52:34,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:52:38,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:52:42,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-23 23:52:46,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]