./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for overflows
Using default analysis
Version cf1a7837
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-cf1a783
[2023-11-12 02:18:57,959 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-12 02:18:58,085 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2023-11-12 02:18:58,093 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-12 02:18:58,094 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-12 02:18:58,138 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-12 02:18:58,139 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-12 02:18:58,140 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-12 02:18:58,141 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-12 02:18:58,146 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-12 02:18:58,148 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-12 02:18:58,149 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-12 02:18:58,149 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-12 02:18:58,151 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-12 02:18:58,151 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-12 02:18:58,152 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-12 02:18:58,152 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-12 02:18:58,153 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-12 02:18:58,153 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-12 02:18:58,154 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-12 02:18:58,154 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-12 02:18:58,155 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-12 02:18:58,155 INFO  L153        SettingsManager]:  * Check absence of signed integer overflows=true
[2023-11-12 02:18:58,155 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2023-11-12 02:18:58,156 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-12 02:18:58,156 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-12 02:18:58,157 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-12 02:18:58,158 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-12 02:18:58,158 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-12 02:18:58,159 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-12 02:18:58,160 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-12 02:18:58,161 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-12 02:18:58,161 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-12 02:18:58,161 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-12 02:18:58,161 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-12 02:18:58,162 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-12 02:18:58,162 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-12 02:18:58,162 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-12 02:18:58,162 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-12 02:18:58,163 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-12 02:18:58,163 INFO  L153        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-12 02:18:58,163 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
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_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a
[2023-11-12 02:18:58,507 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-12 02:18:58,542 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-12 02:18:58,545 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-12 02:18:58,547 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-12 02:18:58,547 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-12 02:18:58,549 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i
[2023-11-12 02:19:01,697 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-12 02:19:02,013 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-12 02:19:02,014 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i
[2023-11-12 02:19:02,038 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/data/234e841cb/a8d4186a265c475292b31d8bb159a5ab/FLAG9d31d5a60
[2023-11-12 02:19:02,056 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/data/234e841cb/a8d4186a265c475292b31d8bb159a5ab
[2023-11-12 02:19:02,062 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-12 02:19:02,064 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-12 02:19:02,069 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-12 02:19:02,069 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-12 02:19:02,075 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-12 02:19:02,076 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:19:02" (1/1) ...
[2023-11-12 02:19:02,077 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@456e34f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:02, skipping insertion in model container
[2023-11-12 02:19:02,077 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:19:02" (1/1) ...
[2023-11-12 02:19:02,151 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-12 02:19:02,678 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-12 02:19:02,699 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-12 02:19:02,765 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-12 02:19:02,805 WARN  L672               CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler.
[2023-11-12 02:19:02,812 INFO  L206         MainTranslator]: Completed translation
[2023-11-12 02:19:02,812 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:02 WrapperNode
[2023-11-12 02:19:02,812 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-12 02:19:02,814 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-12 02:19:02,814 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-12 02:19:02,814 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-12 02:19:02,822 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:02" (1/1) ...
[2023-11-12 02:19:02,842 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:02" (1/1) ...
[2023-11-12 02:19:02,863 INFO  L138                Inliner]: procedures = 164, calls = 72, calls flagged for inlining = 21, calls inlined = 3, statements flattened = 50
[2023-11-12 02:19:02,864 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-12 02:19:02,865 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-12 02:19:02,865 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-12 02:19:02,865 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-12 02:19:02,875 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:02" (1/1) ...
[2023-11-12 02:19:02,876 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:02" (1/1) ...
[2023-11-12 02:19:02,879 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:02" (1/1) ...
[2023-11-12 02:19:02,879 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:02" (1/1) ...
[2023-11-12 02:19:02,885 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:02" (1/1) ...
[2023-11-12 02:19:02,889 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:02" (1/1) ...
[2023-11-12 02:19:02,891 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:02" (1/1) ...
[2023-11-12 02:19:02,892 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:02" (1/1) ...
[2023-11-12 02:19:02,895 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-12 02:19:02,896 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-12 02:19:02,896 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-12 02:19:02,896 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-12 02:19:02,897 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:02" (1/1) ...
[2023-11-12 02:19:02,904 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-12 02:19:02,916 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:19:02,928 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-12 02:19:02,931 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-12 02:19:02,962 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_malloc
[2023-11-12 02:19:02,962 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_malloc
[2023-11-12 02:19:02,962 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-12 02:19:02,963 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-12 02:19:02,963 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-11-12 02:19:02,963 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-11-12 02:19:02,963 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-12 02:19:02,963 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2023-11-12 02:19:02,964 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-12 02:19:02,964 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-12 02:19:03,088 INFO  L236             CfgBuilder]: Building ICFG
[2023-11-12 02:19:03,090 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-12 02:19:03,291 INFO  L277             CfgBuilder]: Performing block encoding
[2023-11-12 02:19:03,297 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-12 02:19:03,298 INFO  L302             CfgBuilder]: Removed 2 assume(true) statements.
[2023-11-12 02:19:03,299 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:19:03 BoogieIcfgContainer
[2023-11-12 02:19:03,300 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-12 02:19:03,302 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-12 02:19:03,303 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-12 02:19:03,306 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-12 02:19:03,306 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:19:02" (1/3) ...
[2023-11-12 02:19:03,306 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5ca342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:19:03, skipping insertion in model container
[2023-11-12 02:19:03,307 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:02" (2/3) ...
[2023-11-12 02:19:03,307 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5ca342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:19:03, skipping insertion in model container
[2023-11-12 02:19:03,307 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:19:03" (3/3) ...
[2023-11-12 02:19:03,309 INFO  L112   eAbstractionObserver]: Analyzing ICFG memleaks_test18_1.i
[2023-11-12 02:19:03,325 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-12 02:19:03,325 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations.
[2023-11-12 02:19:03,372 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-12 02:19:03,380 INFO  L357      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, mHoare=true, 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;@5e3803aa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-12 02:19:03,380 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2023-11-12 02:19:03,385 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 32 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-12 02:19:03,392 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2023-11-12 02:19:03,393 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:19:03,393 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:19:03,394 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-12 02:19:03,400 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:19:03,400 INFO  L85        PathProgramCache]: Analyzing trace with hash 200136568, now seen corresponding path program 1 times
[2023-11-12 02:19:03,410 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:19:03,410 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736389184]
[2023-11-12 02:19:03,411 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:03,411 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:19:03,523 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:03,711 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-12 02:19:03,723 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:03,747 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-12 02:19:03,748 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:19:03,749 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736389184]
[2023-11-12 02:19:03,749 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736389184] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:19:03,750 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-12 02:19:03,750 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-12 02:19:03,752 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802992710]
[2023-11-12 02:19:03,753 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:19:03,758 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-12 02:19:03,758 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:19:03,789 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-12 02:19:03,790 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-12 02:19:03,793 INFO  L87              Difference]: Start difference. First operand  has 32 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand  has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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)
[2023-11-12 02:19:03,940 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:19:03,940 INFO  L93              Difference]: Finished difference Result 66 states and 84 transitions.
[2023-11-12 02:19:03,942 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-12 02:19:03,943 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 11
[2023-11-12 02:19:03,944 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:19:03,953 INFO  L225             Difference]: With dead ends: 66
[2023-11-12 02:19:03,953 INFO  L226             Difference]: Without dead ends: 47
[2023-11-12 02:19:03,957 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-12 02:19:03,965 INFO  L413           NwaCegarLoop]: 33 mSDtfsCounter, 43 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-12 02:19:03,967 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 87 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-12 02:19:03,986 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2023-11-12 02:19:04,008 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 34.
[2023-11-12 02:19:04,010 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 34 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 29 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-12 02:19:04,012 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions.
[2023-11-12 02:19:04,013 INFO  L78                 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 11
[2023-11-12 02:19:04,014 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:19:04,014 INFO  L495      AbstractCegarLoop]: Abstraction has 34 states and 40 transitions.
[2023-11-12 02:19:04,015 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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)
[2023-11-12 02:19:04,015 INFO  L276                IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions.
[2023-11-12 02:19:04,017 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2023-11-12 02:19:04,017 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:19:04,018 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:19:04,018 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-12 02:19:04,019 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-12 02:19:04,019 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:19:04,020 INFO  L85        PathProgramCache]: Analyzing trace with hash -1822623141, now seen corresponding path program 1 times
[2023-11-12 02:19:04,020 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:19:04,020 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973606136]
[2023-11-12 02:19:04,021 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:04,021 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:19:04,054 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:04,206 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-12 02:19:04,210 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:04,219 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-12 02:19:04,225 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:04,237 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-11-12 02:19:04,237 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:19:04,238 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973606136]
[2023-11-12 02:19:04,238 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973606136] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:19:04,238 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-12 02:19:04,238 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-12 02:19:04,239 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523102838]
[2023-11-12 02:19:04,239 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:19:04,240 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-12 02:19:04,240 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:19:04,241 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-12 02:19:04,241 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-12 02:19:04,242 INFO  L87              Difference]: Start difference. First operand 34 states and 40 transitions. Second operand  has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-12 02:19:04,322 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:19:04,322 INFO  L93              Difference]: Finished difference Result 47 states and 55 transitions.
[2023-11-12 02:19:04,323 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-12 02:19:04,323 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19
[2023-11-12 02:19:04,323 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:19:04,324 INFO  L225             Difference]: With dead ends: 47
[2023-11-12 02:19:04,325 INFO  L226             Difference]: Without dead ends: 45
[2023-11-12 02:19:04,325 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-11-12 02:19:04,327 INFO  L413           NwaCegarLoop]: 27 mSDtfsCounter, 15 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-12 02:19:04,328 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 91 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-12 02:19:04,329 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2023-11-12 02:19:04,335 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37.
[2023-11-12 02:19:04,336 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 37 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 32 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2023-11-12 02:19:04,337 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions.
[2023-11-12 02:19:04,337 INFO  L78                 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 19
[2023-11-12 02:19:04,338 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:19:04,338 INFO  L495      AbstractCegarLoop]: Abstraction has 37 states and 43 transitions.
[2023-11-12 02:19:04,338 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-12 02:19:04,339 INFO  L276                IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions.
[2023-11-12 02:19:04,340 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2023-11-12 02:19:04,340 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:19:04,340 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:19:04,340 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-12 02:19:04,341 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-12 02:19:04,341 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:19:04,342 INFO  L85        PathProgramCache]: Analyzing trace with hash -838035494, now seen corresponding path program 1 times
[2023-11-12 02:19:04,342 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:19:04,342 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526536535]
[2023-11-12 02:19:04,342 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:04,343 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:19:04,367 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:04,509 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-12 02:19:04,516 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:04,534 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-12 02:19:04,559 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:04,626 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-11-12 02:19:04,627 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:19:04,630 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526536535]
[2023-11-12 02:19:04,630 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526536535] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:19:04,630 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-12 02:19:04,630 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-11-12 02:19:04,631 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647906555]
[2023-11-12 02:19:04,631 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:19:04,631 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-12 02:19:04,631 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:19:04,632 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-12 02:19:04,633 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-11-12 02:19:04,633 INFO  L87              Difference]: Start difference. First operand 37 states and 43 transitions. Second operand  has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-12 02:19:04,742 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:19:04,745 INFO  L93              Difference]: Finished difference Result 77 states and 90 transitions.
[2023-11-12 02:19:04,745 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-11-12 02:19:04,746 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22
[2023-11-12 02:19:04,747 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:19:04,749 INFO  L225             Difference]: With dead ends: 77
[2023-11-12 02:19:04,751 INFO  L226             Difference]: Without dead ends: 65
[2023-11-12 02:19:04,753 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2023-11-12 02:19:04,754 INFO  L413           NwaCegarLoop]: 36 mSDtfsCounter, 21 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-12 02:19:04,756 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 158 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-12 02:19:04,758 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2023-11-12 02:19:04,768 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 43.
[2023-11-12 02:19:04,771 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 43 states, 32 states have (on average 1.3125) internal successors, (42), 36 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6)
[2023-11-12 02:19:04,776 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions.
[2023-11-12 02:19:04,776 INFO  L78                 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 22
[2023-11-12 02:19:04,776 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:19:04,777 INFO  L495      AbstractCegarLoop]: Abstraction has 43 states and 51 transitions.
[2023-11-12 02:19:04,777 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-12 02:19:04,777 INFO  L276                IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions.
[2023-11-12 02:19:04,778 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2023-11-12 02:19:04,778 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:19:04,778 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:19:04,779 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-12 02:19:04,779 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-12 02:19:04,780 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:19:04,780 INFO  L85        PathProgramCache]: Analyzing trace with hash -789372421, now seen corresponding path program 1 times
[2023-11-12 02:19:04,781 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:19:04,781 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176634039]
[2023-11-12 02:19:04,781 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:04,782 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:19:04,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:04,955 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-12 02:19:04,958 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:04,962 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-12 02:19:04,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:04,972 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-11-12 02:19:04,972 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:19:04,972 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176634039]
[2023-11-12 02:19:04,973 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176634039] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-12 02:19:04,973 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656195600]
[2023-11-12 02:19:04,973 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:04,973 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:19:04,974 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:19:04,977 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-12 02:19:04,987 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-12 02:19:05,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:05,077 INFO  L262         TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-12 02:19:05,083 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-12 02:19:05,152 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-11-12 02:19:05,153 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-12 02:19:05,153 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656195600] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:19:05,153 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-12 02:19:05,153 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7
[2023-11-12 02:19:05,154 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455999889]
[2023-11-12 02:19:05,154 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:19:05,155 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-12 02:19:05,155 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:19:05,155 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-12 02:19:05,156 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2023-11-12 02:19:05,156 INFO  L87              Difference]: Start difference. First operand 43 states and 51 transitions. Second operand  has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-12 02:19:05,215 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:19:05,216 INFO  L93              Difference]: Finished difference Result 49 states and 57 transitions.
[2023-11-12 02:19:05,216 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-12 02:19:05,217 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), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22
[2023-11-12 02:19:05,217 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:19:05,218 INFO  L225             Difference]: With dead ends: 49
[2023-11-12 02:19:05,218 INFO  L226             Difference]: Without dead ends: 47
[2023-11-12 02:19:05,218 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2023-11-12 02:19:05,220 INFO  L413           NwaCegarLoop]: 24 mSDtfsCounter, 28 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-12 02:19:05,220 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 74 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-12 02:19:05,221 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2023-11-12 02:19:05,228 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41.
[2023-11-12 02:19:05,228 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41 states, 32 states have (on average 1.25) internal successors, (40), 34 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6)
[2023-11-12 02:19:05,229 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions.
[2023-11-12 02:19:05,229 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 22
[2023-11-12 02:19:05,230 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:19:05,230 INFO  L495      AbstractCegarLoop]: Abstraction has 41 states and 49 transitions.
[2023-11-12 02:19:05,230 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-12 02:19:05,230 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions.
[2023-11-12 02:19:05,231 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2023-11-12 02:19:05,231 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:19:05,232 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:19:05,244 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-12 02:19:05,444 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:19:05,444 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-12 02:19:05,444 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:19:05,445 INFO  L85        PathProgramCache]: Analyzing trace with hash -1034548999, now seen corresponding path program 1 times
[2023-11-12 02:19:05,445 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:19:05,445 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422052348]
[2023-11-12 02:19:05,445 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:05,445 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:19:05,458 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:05,499 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-12 02:19:05,502 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:05,506 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-12 02:19:05,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:05,512 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-11-12 02:19:05,513 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:19:05,513 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422052348]
[2023-11-12 02:19:05,513 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422052348] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:19:05,513 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-12 02:19:05,513 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-12 02:19:05,514 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919112231]
[2023-11-12 02:19:05,514 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:19:05,514 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-12 02:19:05,514 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:19:05,515 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-12 02:19:05,515 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-12 02:19:05,515 INFO  L87              Difference]: Start difference. First operand 41 states and 49 transitions. Second operand  has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-12 02:19:05,572 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:19:05,572 INFO  L93              Difference]: Finished difference Result 48 states and 56 transitions.
[2023-11-12 02:19:05,573 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-12 02:19:05,573 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22
[2023-11-12 02:19:05,573 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:19:05,574 INFO  L225             Difference]: With dead ends: 48
[2023-11-12 02:19:05,574 INFO  L226             Difference]: Without dead ends: 39
[2023-11-12 02:19:05,574 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-11-12 02:19:05,576 INFO  L413           NwaCegarLoop]: 29 mSDtfsCounter, 7 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-12 02:19:05,578 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 93 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-12 02:19:05,579 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2023-11-12 02:19:05,593 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37.
[2023-11-12 02:19:05,593 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 37 states, 28 states have (on average 1.25) internal successors, (35), 31 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6)
[2023-11-12 02:19:05,595 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions.
[2023-11-12 02:19:05,595 INFO  L78                 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 22
[2023-11-12 02:19:05,596 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:19:05,597 INFO  L495      AbstractCegarLoop]: Abstraction has 37 states and 44 transitions.
[2023-11-12 02:19:05,601 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-12 02:19:05,602 INFO  L276                IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions.
[2023-11-12 02:19:05,603 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2023-11-12 02:19:05,603 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:19:05,603 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:19:05,604 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-12 02:19:05,605 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-12 02:19:05,605 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:19:05,606 INFO  L85        PathProgramCache]: Analyzing trace with hash 1299258798, now seen corresponding path program 1 times
[2023-11-12 02:19:05,611 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:19:05,611 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822186492]
[2023-11-12 02:19:05,612 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:05,612 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:19:05,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:05,683 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-12 02:19:05,685 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:05,689 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-12 02:19:05,692 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:05,698 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-11-12 02:19:05,698 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:19:05,699 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822186492]
[2023-11-12 02:19:05,699 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822186492] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-12 02:19:05,699 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146202506]
[2023-11-12 02:19:05,699 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:05,700 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:19:05,700 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:19:05,701 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-12 02:19:05,721 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-12 02:19:05,787 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:05,788 INFO  L262         TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-12 02:19:05,790 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-12 02:19:05,807 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-11-12 02:19:05,807 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-12 02:19:05,808 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [146202506] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:19:05,808 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-12 02:19:05,808 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6
[2023-11-12 02:19:05,808 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789444591]
[2023-11-12 02:19:05,809 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:19:05,809 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-12 02:19:05,809 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:19:05,810 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-12 02:19:05,810 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2023-11-12 02:19:05,810 INFO  L87              Difference]: Start difference. First operand 37 states and 44 transitions. Second operand  has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-12 02:19:05,824 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:19:05,825 INFO  L93              Difference]: Finished difference Result 37 states and 44 transitions.
[2023-11-12 02:19:05,825 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-12 02:19:05,825 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23
[2023-11-12 02:19:05,826 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:19:05,826 INFO  L225             Difference]: With dead ends: 37
[2023-11-12 02:19:05,827 INFO  L226             Difference]: Without dead ends: 36
[2023-11-12 02:19:05,827 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2023-11-12 02:19:05,828 INFO  L413           NwaCegarLoop]: 23 mSDtfsCounter, 15 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-12 02:19:05,828 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 31 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-12 02:19:05,829 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2023-11-12 02:19:05,834 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36.
[2023-11-12 02:19:05,834 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 36 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6)
[2023-11-12 02:19:05,835 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions.
[2023-11-12 02:19:05,835 INFO  L78                 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 23
[2023-11-12 02:19:05,836 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:19:05,836 INFO  L495      AbstractCegarLoop]: Abstraction has 36 states and 43 transitions.
[2023-11-12 02:19:05,836 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-12 02:19:05,836 INFO  L276                IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions.
[2023-11-12 02:19:05,837 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2023-11-12 02:19:05,838 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:19:05,838 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:19:05,844 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-11-12 02:19:06,043 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2023-11-12 02:19:06,044 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-12 02:19:06,044 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:19:06,045 INFO  L85        PathProgramCache]: Analyzing trace with hash -26339835, now seen corresponding path program 1 times
[2023-11-12 02:19:06,045 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:19:06,046 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520882175]
[2023-11-12 02:19:06,046 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:06,046 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:19:06,070 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:06,115 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-12 02:19:06,117 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:06,121 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-12 02:19:06,123 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:06,126 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2023-11-12 02:19:06,127 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:19:06,127 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520882175]
[2023-11-12 02:19:06,127 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520882175] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:19:06,127 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-12 02:19:06,127 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-12 02:19:06,127 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860706916]
[2023-11-12 02:19:06,128 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:19:06,128 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-12 02:19:06,128 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:19:06,129 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-12 02:19:06,129 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-12 02:19:06,129 INFO  L87              Difference]: Start difference. First operand 36 states and 43 transitions. Second operand  has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-12 02:19:06,162 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:19:06,162 INFO  L93              Difference]: Finished difference Result 36 states and 43 transitions.
[2023-11-12 02:19:06,163 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-12 02:19:06,163 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26
[2023-11-12 02:19:06,163 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:19:06,164 INFO  L225             Difference]: With dead ends: 36
[2023-11-12 02:19:06,164 INFO  L226             Difference]: Without dead ends: 35
[2023-11-12 02:19:06,164 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-11-12 02:19:06,165 INFO  L413           NwaCegarLoop]: 26 mSDtfsCounter, 8 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-12 02:19:06,165 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 90 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-12 02:19:06,166 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2023-11-12 02:19:06,170 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35.
[2023-11-12 02:19:06,170 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 29 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6)
[2023-11-12 02:19:06,171 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions.
[2023-11-12 02:19:06,171 INFO  L78                 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 26
[2023-11-12 02:19:06,172 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:19:06,172 INFO  L495      AbstractCegarLoop]: Abstraction has 35 states and 42 transitions.
[2023-11-12 02:19:06,172 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-12 02:19:06,172 INFO  L276                IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions.
[2023-11-12 02:19:06,173 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2023-11-12 02:19:06,173 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:19:06,173 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:19:06,173 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-11-12 02:19:06,174 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-12 02:19:06,174 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:19:06,174 INFO  L85        PathProgramCache]: Analyzing trace with hash -816534798, now seen corresponding path program 1 times
[2023-11-12 02:19:06,174 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:19:06,174 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649083174]
[2023-11-12 02:19:06,175 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:06,175 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:19:06,189 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:06,282 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-12 02:19:06,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:06,291 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-12 02:19:06,295 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:06,301 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-11-12 02:19:06,302 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:19:06,302 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649083174]
[2023-11-12 02:19:06,302 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649083174] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-12 02:19:06,302 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052269990]
[2023-11-12 02:19:06,302 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:06,303 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:19:06,303 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:19:06,304 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-12 02:19:06,330 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-12 02:19:06,396 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:06,397 INFO  L262         TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-11-12 02:19:06,399 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-12 02:19:06,486 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-11-12 02:19:06,486 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-12 02:19:06,584 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-11-12 02:19:06,584 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052269990] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-12 02:19:06,585 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-12 02:19:06,585 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14
[2023-11-12 02:19:06,585 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125033682]
[2023-11-12 02:19:06,585 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-12 02:19:06,587 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2023-11-12 02:19:06,587 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:19:06,590 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2023-11-12 02:19:06,590 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182
[2023-11-12 02:19:06,590 INFO  L87              Difference]: Start difference. First operand 35 states and 42 transitions. Second operand  has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 13 states have internal predecessors, (40), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2023-11-12 02:19:06,775 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:19:06,775 INFO  L93              Difference]: Finished difference Result 67 states and 79 transitions.
[2023-11-12 02:19:06,776 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-11-12 02:19:06,776 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 13 states have internal predecessors, (40), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 27
[2023-11-12 02:19:06,777 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:19:06,777 INFO  L225             Difference]: With dead ends: 67
[2023-11-12 02:19:06,777 INFO  L226             Difference]: Without dead ends: 60
[2023-11-12 02:19:06,778 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272
[2023-11-12 02:19:06,779 INFO  L413           NwaCegarLoop]: 21 mSDtfsCounter, 93 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-12 02:19:06,779 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 128 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-12 02:19:06,780 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2023-11-12 02:19:06,786 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 45.
[2023-11-12 02:19:06,787 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 45 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 37 states have internal predecessors, (44), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8)
[2023-11-12 02:19:06,787 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions.
[2023-11-12 02:19:06,788 INFO  L78                 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 27
[2023-11-12 02:19:06,788 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:19:06,788 INFO  L495      AbstractCegarLoop]: Abstraction has 45 states and 56 transitions.
[2023-11-12 02:19:06,788 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 13 states have internal predecessors, (40), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2023-11-12 02:19:06,789 INFO  L276                IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions.
[2023-11-12 02:19:06,790 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2023-11-12 02:19:06,790 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:19:06,790 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:19:06,801 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-12 02:19:06,996 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:19:06,996 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-12 02:19:06,997 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:19:06,997 INFO  L85        PathProgramCache]: Analyzing trace with hash 623192612, now seen corresponding path program 1 times
[2023-11-12 02:19:06,997 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:19:06,997 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901780345]
[2023-11-12 02:19:06,997 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:06,997 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:19:07,015 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:07,096 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-12 02:19:07,098 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:07,101 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-12 02:19:07,105 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:07,110 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2023-11-12 02:19:07,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:07,122 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2023-11-12 02:19:07,123 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:19:07,123 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901780345]
[2023-11-12 02:19:07,123 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901780345] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-12 02:19:07,123 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710267965]
[2023-11-12 02:19:07,123 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:07,123 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:19:07,124 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:19:07,125 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-12 02:19:07,132 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-11-12 02:19:07,225 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:07,227 INFO  L262         TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-11-12 02:19:07,229 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-12 02:19:07,271 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2023-11-12 02:19:07,272 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-12 02:19:07,341 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2023-11-12 02:19:07,342 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710267965] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-12 02:19:07,342 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-12 02:19:07,342 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12
[2023-11-12 02:19:07,342 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293534196]
[2023-11-12 02:19:07,342 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-12 02:19:07,343 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-11-12 02:19:07,343 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:19:07,344 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-11-12 02:19:07,344 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156
[2023-11-12 02:19:07,344 INFO  L87              Difference]: Start difference. First operand 45 states and 56 transitions. Second operand  has 13 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2023-11-12 02:19:07,498 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:19:07,498 INFO  L93              Difference]: Finished difference Result 84 states and 103 transitions.
[2023-11-12 02:19:07,499 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2023-11-12 02:19:07,499 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 31
[2023-11-12 02:19:07,499 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:19:07,500 INFO  L225             Difference]: With dead ends: 84
[2023-11-12 02:19:07,500 INFO  L226             Difference]: Without dead ends: 83
[2023-11-12 02:19:07,501 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272
[2023-11-12 02:19:07,502 INFO  L413           NwaCegarLoop]: 22 mSDtfsCounter, 40 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-12 02:19:07,502 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 141 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-12 02:19:07,503 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 83 states.
[2023-11-12 02:19:07,511 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 62.
[2023-11-12 02:19:07,512 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 62 states, 52 states have (on average 1.1730769230769231) internal successors, (61), 50 states have internal predecessors, (61), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 10 states have call predecessors, (12), 6 states have call successors, (12)
[2023-11-12 02:19:07,513 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions.
[2023-11-12 02:19:07,513 INFO  L78                 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 31
[2023-11-12 02:19:07,513 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:19:07,513 INFO  L495      AbstractCegarLoop]: Abstraction has 62 states and 79 transitions.
[2023-11-12 02:19:07,514 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2023-11-12 02:19:07,514 INFO  L276                IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions.
[2023-11-12 02:19:07,515 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2023-11-12 02:19:07,515 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:19:07,515 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:19:07,526 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-11-12 02:19:07,720 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:19:07,721 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-12 02:19:07,721 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:19:07,722 INFO  L85        PathProgramCache]: Analyzing trace with hash -623004543, now seen corresponding path program 1 times
[2023-11-12 02:19:07,722 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:19:07,722 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680812519]
[2023-11-12 02:19:07,722 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:07,722 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:19:07,745 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:07,859 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-12 02:19:07,861 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:07,864 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-12 02:19:07,867 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:07,872 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2023-11-12 02:19:07,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:07,879 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2023-11-12 02:19:07,879 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:19:07,879 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680812519]
[2023-11-12 02:19:07,880 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680812519] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-12 02:19:07,880 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217724508]
[2023-11-12 02:19:07,880 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:07,880 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:19:07,880 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:19:07,882 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-12 02:19:07,892 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-11-12 02:19:07,981 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:07,982 INFO  L262         TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-12 02:19:07,985 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-12 02:19:08,044 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2023-11-12 02:19:08,044 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-12 02:19:08,141 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2023-11-12 02:19:08,141 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217724508] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-12 02:19:08,141 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-12 02:19:08,142 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14
[2023-11-12 02:19:08,142 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474115463]
[2023-11-12 02:19:08,142 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-12 02:19:08,143 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2023-11-12 02:19:08,143 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:19:08,144 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2023-11-12 02:19:08,144 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210
[2023-11-12 02:19:08,145 INFO  L87              Difference]: Start difference. First operand 62 states and 79 transitions. Second operand  has 15 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2023-11-12 02:19:08,357 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:19:08,358 INFO  L93              Difference]: Finished difference Result 68 states and 86 transitions.
[2023-11-12 02:19:08,358 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2023-11-12 02:19:08,358 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 34
[2023-11-12 02:19:08,359 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:19:08,359 INFO  L225             Difference]: With dead ends: 68
[2023-11-12 02:19:08,359 INFO  L226             Difference]: Without dead ends: 55
[2023-11-12 02:19:08,360 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462
[2023-11-12 02:19:08,361 INFO  L413           NwaCegarLoop]: 16 mSDtfsCounter, 40 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-12 02:19:08,361 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 131 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-12 02:19:08,362 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2023-11-12 02:19:08,368 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 45.
[2023-11-12 02:19:08,369 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 45 states, 37 states have (on average 1.054054054054054) internal successors, (39), 37 states have internal predecessors, (39), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2023-11-12 02:19:08,369 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions.
[2023-11-12 02:19:08,369 INFO  L78                 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 34
[2023-11-12 02:19:08,370 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:19:08,370 INFO  L495      AbstractCegarLoop]: Abstraction has 45 states and 51 transitions.
[2023-11-12 02:19:08,370 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2023-11-12 02:19:08,370 INFO  L276                IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions.
[2023-11-12 02:19:08,372 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2023-11-12 02:19:08,372 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:19:08,372 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:19:08,378 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-11-12 02:19:08,577 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2023-11-12 02:19:08,578 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-12 02:19:08,578 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:19:08,578 INFO  L85        PathProgramCache]: Analyzing trace with hash 1169010951, now seen corresponding path program 2 times
[2023-11-12 02:19:08,579 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:19:08,579 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619830669]
[2023-11-12 02:19:08,579 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:08,579 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:19:08,622 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:08,915 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-12 02:19:08,918 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:08,921 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-12 02:19:08,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:08,929 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2023-11-12 02:19:08,932 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:08,936 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2023-11-12 02:19:08,939 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:08,944 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2023-11-12 02:19:08,947 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:08,952 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2023-11-12 02:19:08,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:08,960 INFO  L134       CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2023-11-12 02:19:08,960 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:19:08,960 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619830669]
[2023-11-12 02:19:08,961 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619830669] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-12 02:19:08,961 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966109204]
[2023-11-12 02:19:08,961 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-11-12 02:19:08,961 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:19:08,961 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:19:08,962 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-12 02:19:08,993 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-11-12 02:19:09,107 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-11-12 02:19:09,107 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-11-12 02:19:09,109 INFO  L262         TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-11-12 02:19:09,113 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-12 02:19:09,210 INFO  L134       CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2023-11-12 02:19:09,211 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-12 02:19:09,456 INFO  L134       CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2023-11-12 02:19:09,457 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [966109204] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-12 02:19:09,457 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-12 02:19:09,457 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24
[2023-11-12 02:19:09,457 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119685278]
[2023-11-12 02:19:09,458 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-12 02:19:09,458 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2023-11-12 02:19:09,458 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:19:09,459 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2023-11-12 02:19:09,460 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600
[2023-11-12 02:19:09,460 INFO  L87              Difference]: Start difference. First operand 45 states and 51 transitions. Second operand  has 25 states, 24 states have (on average 3.25) internal successors, (78), 24 states have internal predecessors, (78), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2023-11-12 02:19:09,834 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:19:09,835 INFO  L93              Difference]: Finished difference Result 90 states and 118 transitions.
[2023-11-12 02:19:09,835 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2023-11-12 02:19:09,835 INFO  L78                 Accepts]: Start accepts. Automaton has  has 25 states, 24 states have (on average 3.25) internal successors, (78), 24 states have internal predecessors, (78), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 64
[2023-11-12 02:19:09,837 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:19:09,840 INFO  L225             Difference]: With dead ends: 90
[2023-11-12 02:19:09,840 INFO  L226             Difference]: Without dead ends: 89
[2023-11-12 02:19:09,841 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=856, Unknown=0, NotChecked=0, Total=1190
[2023-11-12 02:19:09,842 INFO  L413           NwaCegarLoop]: 16 mSDtfsCounter, 33 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-12 02:19:09,842 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 168 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-12 02:19:09,843 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 89 states.
[2023-11-12 02:19:09,863 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87.
[2023-11-12 02:19:09,864 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 87 states, 73 states have (on average 1.0273972602739727) internal successors, (75), 73 states have internal predecessors, (75), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2023-11-12 02:19:09,866 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions.
[2023-11-12 02:19:09,867 INFO  L78                 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 64
[2023-11-12 02:19:09,867 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:19:09,867 INFO  L495      AbstractCegarLoop]: Abstraction has 87 states and 99 transitions.
[2023-11-12 02:19:09,868 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 25 states, 24 states have (on average 3.25) internal successors, (78), 24 states have internal predecessors, (78), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2023-11-12 02:19:09,868 INFO  L276                IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions.
[2023-11-12 02:19:09,872 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2023-11-12 02:19:09,872 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:19:09,872 INFO  L195           NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:19:09,882 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-11-12 02:19:10,078 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2023-11-12 02:19:10,078 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2023-11-12 02:19:10,078 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:19:10,078 INFO  L85        PathProgramCache]: Analyzing trace with hash 735614119, now seen corresponding path program 3 times
[2023-11-12 02:19:10,079 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:19:10,079 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512473646]
[2023-11-12 02:19:10,079 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:19:10,079 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:19:10,175 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:11,115 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-12 02:19:11,118 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:11,123 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2023-11-12 02:19:11,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:11,131 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2023-11-12 02:19:11,134 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:11,138 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2023-11-12 02:19:11,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:11,145 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2023-11-12 02:19:11,148 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:11,153 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2023-11-12 02:19:11,157 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:11,161 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2023-11-12 02:19:11,165 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:11,169 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2023-11-12 02:19:11,172 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:11,176 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2023-11-12 02:19:11,180 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:11,184 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98
[2023-11-12 02:19:11,187 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:11,191 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2023-11-12 02:19:11,194 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:11,198 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2023-11-12 02:19:11,201 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:19:11,205 INFO  L134       CoverageAnalysis]: Checked inductivity of 649 backedges. 321 proven. 64 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2023-11-12 02:19:11,205 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:19:11,206 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512473646]
[2023-11-12 02:19:11,206 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512473646] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-12 02:19:11,206 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315164046]
[2023-11-12 02:19:11,206 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2023-11-12 02:19:11,206 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:19:11,207 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:19:11,208 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-12 02:19:11,215 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-11-12 02:19:11,358 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2023-11-12 02:19:11,358 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2023-11-12 02:19:11,359 INFO  L262         TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-12 02:19:11,365 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-12 02:19:11,526 INFO  L134       CoverageAnalysis]: Checked inductivity of 649 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked.
[2023-11-12 02:19:11,526 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-12 02:19:11,747 INFO  L134       CoverageAnalysis]: Checked inductivity of 649 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked.
[2023-11-12 02:19:11,747 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [315164046] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-12 02:19:11,748 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-12 02:19:11,748 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 4, 4] total 30
[2023-11-12 02:19:11,748 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041639054]
[2023-11-12 02:19:11,748 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-12 02:19:11,749 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 30 states
[2023-11-12 02:19:11,749 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:19:11,750 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants.
[2023-11-12 02:19:11,751 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=721, Unknown=0, NotChecked=0, Total=870
[2023-11-12 02:19:11,751 INFO  L87              Difference]: Start difference. First operand 87 states and 99 transitions. Second operand  has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 29 states have internal predecessors, (103), 15 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17)
[2023-11-12 02:19:12,707 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:19:12,708 INFO  L93              Difference]: Finished difference Result 94 states and 116 transitions.
[2023-11-12 02:19:12,708 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2023-11-12 02:19:12,708 INFO  L78                 Accepts]: Start accepts. Automaton has  has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 29 states have internal predecessors, (103), 15 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 130
[2023-11-12 02:19:12,709 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:19:12,709 INFO  L225             Difference]: With dead ends: 94
[2023-11-12 02:19:12,709 INFO  L226             Difference]: Without dead ends: 0
[2023-11-12 02:19:12,712 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=744, Invalid=2562, Unknown=0, NotChecked=0, Total=3306
[2023-11-12 02:19:12,712 INFO  L413           NwaCegarLoop]: 51 mSDtfsCounter, 27 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-11-12 02:19:12,713 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 329 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-11-12 02:19:12,713 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2023-11-12 02:19:12,713 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2023-11-12 02:19:12,713 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-12 02:19:12,713 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2023-11-12 02:19:12,714 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 130
[2023-11-12 02:19:12,714 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:19:12,714 INFO  L495      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-11-12 02:19:12,714 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 30 states, 30 states have (on average 3.433333333333333) internal successors, (103), 29 states have internal predecessors, (103), 15 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17)
[2023-11-12 02:19:12,714 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2023-11-12 02:19:12,714 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2023-11-12 02:19:12,717 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining)
[2023-11-12 02:19:12,717 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining)
[2023-11-12 02:19:12,717 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining)
[2023-11-12 02:19:12,717 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining)
[2023-11-12 02:19:12,718 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining)
[2023-11-12 02:19:12,718 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining)
[2023-11-12 02:19:12,727 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2023-11-12 02:19:12,924 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2023-11-12 02:19:12,926 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2023-11-12 02:19:13,385 INFO  L899   garLoopResultBuilder]: For program point L526(lines 526 530) no Hoare annotation was computed.
[2023-11-12 02:19:13,385 INFO  L895   garLoopResultBuilder]: At program point $Ultimate##0(lines 525 531) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))
[2023-11-12 02:19:13,385 INFO  L899   garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 525 531) no Hoare annotation was computed.
[2023-11-12 02:19:13,385 INFO  L899   garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 525 531) no Hoare annotation was computed.
[2023-11-12 02:19:13,385 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed.
[2023-11-12 02:19:13,386 INFO  L899   garLoopResultBuilder]: For program point L766(line 766) no Hoare annotation was computed.
[2023-11-12 02:19:13,386 INFO  L895   garLoopResultBuilder]: At program point L762(line 762) the Hoare annotation is: (= 10 |ULTIMATE.start_entry_point_~len~0#1|)
[2023-11-12 02:19:13,386 INFO  L899   garLoopResultBuilder]: For program point L762-1(line 762) no Hoare annotation was computed.
[2023-11-12 02:19:13,386 INFO  L899   garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2023-11-12 02:19:13,386 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 767) no Hoare annotation was computed.
[2023-11-12 02:19:13,386 INFO  L899   garLoopResultBuilder]: For program point L767-2(lines 767 771) no Hoare annotation was computed.
[2023-11-12 02:19:13,386 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed.
[2023-11-12 02:19:13,386 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2023-11-12 02:19:13,386 INFO  L899   garLoopResultBuilder]: For program point L767-3(line 767) no Hoare annotation was computed.
[2023-11-12 02:19:13,386 INFO  L899   garLoopResultBuilder]: For program point L767-4(line 767) no Hoare annotation was computed.
[2023-11-12 02:19:13,387 INFO  L895   garLoopResultBuilder]: At program point L767-5(lines 767 771) the Hoare annotation is: (let ((.cse0 (= 10 |ULTIMATE.start_entry_point_~len~0#1|))) (or (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 3)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 1)) (and (= |ULTIMATE.start_entry_point_~i~0#1| 2) .cse0) (and .cse0 (<= 5 |ULTIMATE.start_entry_point_~i~0#1|) (<= |ULTIMATE.start_entry_point_~i~0#1| 2147483642)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 4)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 0)) (and (<= |ULTIMATE.start_entry_point_~i~0#1| 2147483646) .cse0 (<= 9 |ULTIMATE.start_entry_point_~i~0#1|))))
[2023-11-12 02:19:13,387 INFO  L899   garLoopResultBuilder]: For program point L772(lines 760 777) no Hoare annotation was computed.
[2023-11-12 02:19:13,387 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 767) no Hoare annotation was computed.
[2023-11-12 02:19:13,387 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2023-11-12 02:19:13,387 INFO  L895   garLoopResultBuilder]: At program point L768(line 768) the Hoare annotation is: (let ((.cse0 (= 10 |ULTIMATE.start_entry_point_~len~0#1|))) (or (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 3)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 1)) (and (= |ULTIMATE.start_entry_point_~i~0#1| 2) .cse0) (and .cse0 (<= 5 |ULTIMATE.start_entry_point_~i~0#1|) (<= |ULTIMATE.start_entry_point_~i~0#1| 9)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 4)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 0))))
[2023-11-12 02:19:13,387 INFO  L899   garLoopResultBuilder]: For program point L768-1(line 768) no Hoare annotation was computed.
[2023-11-12 02:19:13,387 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed.
[2023-11-12 02:19:13,388 INFO  L899   garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed.
[2023-11-12 02:19:13,388 INFO  L899   garLoopResultBuilder]: For program point L773(line 773) no Hoare annotation was computed.
[2023-11-12 02:19:13,388 INFO  L899   garLoopResultBuilder]: For program point L773-3(lines 773 775) no Hoare annotation was computed.
[2023-11-12 02:19:13,388 INFO  L899   garLoopResultBuilder]: For program point L769(line 769) no Hoare annotation was computed.
[2023-11-12 02:19:13,388 INFO  L899   garLoopResultBuilder]: For program point L773-4(line 773) no Hoare annotation was computed.
[2023-11-12 02:19:13,388 INFO  L899   garLoopResultBuilder]: For program point L773-5(line 773) no Hoare annotation was computed.
[2023-11-12 02:19:13,388 INFO  L895   garLoopResultBuilder]: At program point L773-6(lines 773 775) the Hoare annotation is: (and (or (< 0 |ULTIMATE.start_entry_point_~i~0#1|) (= |ULTIMATE.start_entry_point_~i~0#1| 0)) (<= |ULTIMATE.start_entry_point_~i~0#1| 2147483647) (<= 10 |ULTIMATE.start_entry_point_~len~0#1|) (<= |ULTIMATE.start_entry_point_~j~0#1| 2147483648))
[2023-11-12 02:19:13,388 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed.
[2023-11-12 02:19:13,388 INFO  L899   garLoopResultBuilder]: For program point L773-7(lines 760 777) no Hoare annotation was computed.
[2023-11-12 02:19:13,389 INFO  L899   garLoopResultBuilder]: For program point L778(lines 778 780) no Hoare annotation was computed.
[2023-11-12 02:19:13,392 INFO  L445         BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:19:13,394 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-11-12 02:19:13,419 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:19:13 BoogieIcfgContainer
[2023-11-12 02:19:13,419 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-12 02:19:13,420 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-12 02:19:13,420 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2023-11-12 02:19:13,420 INFO  L274        PluginConnector]: Witness Printer initialized
[2023-11-12 02:19:13,420 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:19:03" (3/4) ...
[2023-11-12 02:19:13,422 INFO  L137         WitnessPrinter]: Generating witness for correct program
[2023-11-12 02:19:13,426 INFO  L361     RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc
[2023-11-12 02:19:13,432 INFO  L944   BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges
[2023-11-12 02:19:13,432 INFO  L944   BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2023-11-12 02:19:13,432 INFO  L944   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-11-12 02:19:13,533 INFO  L149         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml
[2023-11-12 02:19:13,535 INFO  L149         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/witness.yml
[2023-11-12 02:19:13,535 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-12 02:19:13,536 INFO  L158              Benchmark]: Toolchain (without parser) took 11471.56ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 85.1MB in the beginning and 54.7MB in the end (delta: 30.4MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB.
[2023-11-12 02:19:13,536 INFO  L158              Benchmark]: CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-12 02:19:13,536 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 744.69ms. Allocated memory is still 134.2MB. Free memory was 84.4MB in the beginning and 62.7MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB.
[2023-11-12 02:19:13,537 INFO  L158              Benchmark]: Boogie Procedure Inliner took 50.32ms. Allocated memory is still 134.2MB. Free memory was 62.7MB in the beginning and 60.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-12 02:19:13,538 INFO  L158              Benchmark]: Boogie Preprocessor took 30.40ms. Allocated memory is still 134.2MB. Free memory was 60.6MB in the beginning and 59.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-12 02:19:13,538 INFO  L158              Benchmark]: RCFGBuilder took 403.90ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 58.9MB in the beginning and 136.0MB in the end (delta: -77.0MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB.
[2023-11-12 02:19:13,539 INFO  L158              Benchmark]: TraceAbstraction took 10116.68ms. Allocated memory is still 167.8MB. Free memory was 135.0MB in the beginning and 60.0MB in the end (delta: 75.0MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB.
[2023-11-12 02:19:13,540 INFO  L158              Benchmark]: Witness Printer took 115.50ms. Allocated memory is still 167.8MB. Free memory was 60.0MB in the beginning and 54.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2023-11-12 02:19:13,545 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 744.69ms. Allocated memory is still 134.2MB. Free memory was 84.4MB in the beginning and 62.7MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 50.32ms. Allocated memory is still 134.2MB. Free memory was 62.7MB in the beginning and 60.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 30.40ms. Allocated memory is still 134.2MB. Free memory was 60.6MB in the beginning and 59.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 403.90ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 58.9MB in the beginning and 136.0MB in the end (delta: -77.0MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB.
 * TraceAbstraction took 10116.68ms. Allocated memory is still 167.8MB. Free memory was 135.0MB in the beginning and 60.0MB in the end (delta: 75.0MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB.
 * Witness Printer took 115.50ms. Allocated memory is still 167.8MB. Free memory was 60.0MB in the beginning and 54.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 767]: integer overflow can never occur
    For all program executions holds that integer overflow can never occur at this location
  - PositiveResult [Line: 767]: integer overflow can never occur
    For all program executions holds that integer overflow can never occur at this location
  - PositiveResult [Line: 773]: integer overflow can never occur
    For all program executions holds that integer overflow can never occur at this location
  - PositiveResult [Line: 773]: integer overflow can never occur
    For all program executions holds that integer overflow can never occur at this location
  - PositiveResult [Line: 773]: integer overflow can never occur
    For all program executions holds that integer overflow can never occur at this location
  - PositiveResult [Line: 773]: integer overflow can never occur
    For all program executions holds that integer overflow can never occur at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 2 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 10.0s, OverallIterations: 12, TraceHistogramMax: 12, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 377 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 370 mSDsluCounter, 1521 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1197 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1319 IncrementalHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 324 mSDtfsCounter, 1319 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 820 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=11, InterpolantAutomatonStates: 125, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 99 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 16 PreInvPairs, 40 NumberOfFragments, 129 HoareAnnotationTreeSize, 16 FomulaSimplifications, 3799 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 5 FomulaSimplificationsInter, 267 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 762 NumberOfCodeBlocks, 655 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1024 ConstructedInterpolants, 0 QuantifiedInterpolants, 2582 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1100 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 24 InterpolantComputations, 7 PerfectInterpolantSequences, 2062/2494 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    6 specifications checked. All of them hold
  - InvariantResult [Line: 767]: Loop Invariant
    Derived loop invariant: ((((((((10 == len) && (i == 3)) || ((10 == len) && (i == 1))) || ((i == 2) && (10 == len))) || (((10 == len) && (5 <= i)) && (i <= 2147483642))) || ((10 == len) && (i == 4))) || ((10 == len) && (i == 0))) || (((i <= 2147483646) && (10 == len)) && (9 <= i)))
  - InvariantResult [Line: 773]: Loop Invariant
    Derived loop invariant: (((((0 < i) || (i == 0)) && (i <= 2147483647)) && (10 <= len)) && (j <= 2147483648))
RESULT: Ultimate proved your program to be correct!
[2023-11-12 02:19:13,582 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea3cc98a-4f31-4fdd-98b8-79a3e4315dcc/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE