./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo2.c --full-output --architecture 32bit


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


Checking for overflows
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu --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 dfa146aa1f7e35376cbccd06e874bc54d20f2c59efb61bc729adb7e4f2824594
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:56:00,061 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:56:00,138 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2023-11-19 07:56:00,144 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:56:00,145 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:56:00,175 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:56:00,176 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:56:00,177 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:56:00,178 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:56:00,178 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:56:00,179 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:56:00,180 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-19 07:56:00,181 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-19 07:56:00,181 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:56:00,182 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:56:00,182 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-19 07:56:00,183 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-19 07:56:00,184 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-19 07:56:00,184 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-19 07:56:00,185 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:56:00,185 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:56:00,186 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:56:00,186 INFO  L153        SettingsManager]:  * Check absence of signed integer overflows=true
[2023-11-19 07:56:00,187 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2023-11-19 07:56:00,187 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-19 07:56:00,188 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-19 07:56:00,188 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-19 07:56:00,189 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:56:00,189 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-19 07:56:00,190 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-19 07:56:00,190 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:56:00,191 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:56:00,191 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:56:00,191 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:56:00,192 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-19 07:56:00,192 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:56:00,192 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:56:00,192 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:56:00,193 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:56:00,193 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:56:00,193 INFO  L153        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:56:00,193 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_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/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_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu
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 -> dfa146aa1f7e35376cbccd06e874bc54d20f2c59efb61bc729adb7e4f2824594
[2023-11-19 07:56:00,516 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:56:00,574 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:56:00,577 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:56:00,578 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-19 07:56:00,579 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-19 07:56:00,581 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo2.c
[2023-11-19 07:56:04,253 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:56:04,607 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-19 07:56:04,608 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/sv-benchmarks/c/recursified_nla-digbench/recursified_geo2.c
[2023-11-19 07:56:04,620 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/data/e222edddf/91bc0ee916f44b558ffe93f3100eb632/FLAG4660fab3b
[2023-11-19 07:56:04,648 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/data/e222edddf/91bc0ee916f44b558ffe93f3100eb632
[2023-11-19 07:56:04,655 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:56:04,658 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:56:04,660 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:56:04,660 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:56:04,667 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:56:04,668 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:04" (1/1) ...
[2023-11-19 07:56:04,670 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21d3e31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:04, skipping insertion in model container
[2023-11-19 07:56:04,670 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:04" (1/1) ...
[2023-11-19 07:56:04,700 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:56:04,900 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:56:04,913 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-19 07:56:04,944 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:56:04,960 INFO  L206         MainTranslator]: Completed translation
[2023-11-19 07:56:04,961 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:04 WrapperNode
[2023-11-19 07:56:04,961 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:56:04,962 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:56:04,963 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:56:04,963 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:56:04,973 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:04" (1/1) ...
[2023-11-19 07:56:04,983 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:04" (1/1) ...
[2023-11-19 07:56:05,011 INFO  L138                Inliner]: procedures = 16, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82
[2023-11-19 07:56:05,012 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:56:05,013 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:56:05,013 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:56:05,013 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:56:05,026 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:04" (1/1) ...
[2023-11-19 07:56:05,029 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:04" (1/1) ...
[2023-11-19 07:56:05,038 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:04" (1/1) ...
[2023-11-19 07:56:05,039 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:04" (1/1) ...
[2023-11-19 07:56:05,047 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:04" (1/1) ...
[2023-11-19 07:56:05,050 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:04" (1/1) ...
[2023-11-19 07:56:05,052 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:04" (1/1) ...
[2023-11-19 07:56:05,054 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:04" (1/1) ...
[2023-11-19 07:56:05,057 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:56:05,058 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:56:05,059 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:56:05,059 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:56:05,060 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:04" (1/1) ...
[2023-11-19 07:56:05,068 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:56:05,087 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:56:05,103 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:56:05,136 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:56:05,163 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:56:05,163 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:56:05,164 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:56:05,164 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 07:56:05,164 INFO  L130     BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_38_0
[2023-11-19 07:56:05,164 INFO  L138     BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_38_0
[2023-11-19 07:56:05,165 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:56:05,165 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:56:05,165 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-11-19 07:56:05,165 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-11-19 07:56:05,166 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-11-19 07:56:05,167 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:56:05,299 INFO  L236             CfgBuilder]: Building ICFG
[2023-11-19 07:56:05,303 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:56:05,854 INFO  L277             CfgBuilder]: Performing block encoding
[2023-11-19 07:56:05,865 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:56:05,865 INFO  L302             CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-19 07:56:05,870 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:05 BoogieIcfgContainer
[2023-11-19 07:56:05,871 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:56:05,874 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:56:05,874 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:56:05,879 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:56:05,879 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:56:04" (1/3) ...
[2023-11-19 07:56:05,880 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f46f374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:05, skipping insertion in model container
[2023-11-19 07:56:05,880 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:04" (2/3) ...
[2023-11-19 07:56:05,881 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f46f374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:05, skipping insertion in model container
[2023-11-19 07:56:05,881 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:05" (3/3) ...
[2023-11-19 07:56:05,883 INFO  L112   eAbstractionObserver]: Analyzing ICFG recursified_geo2.c
[2023-11-19 07:56:05,909 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:56:05,909 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations.
[2023-11-19 07:56:05,998 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:56:06,007 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;@24869af1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:56:06,007 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 28 error locations.
[2023-11-19 07:56:06,012 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 79 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 73 states have internal predecessors, (75), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2023-11-19 07:56:06,020 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2023-11-19 07:56:06,021 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 07:56:06,021 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-11-19 07:56:06,022 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2023-11-19 07:56:06,028 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:56:06,028 INFO  L85        PathProgramCache]: Analyzing trace with hash -1895540477, now seen corresponding path program 1 times
[2023-11-19 07:56:06,054 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:56:06,054 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071373747]
[2023-11-19 07:56:06,055 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:56:06,055 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:56:06,227 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-19 07:56:06,228 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1301607989]
[2023-11-19 07:56:06,229 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:56:06,229 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:56:06,229 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:56:06,232 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:56:06,268 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-19 07:56:06,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:56:06,441 INFO  L262         TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 39 conjunts are in the unsatisfiable core
[2023-11-19 07:56:06,456 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:56:06,661 WARN  L214             Elim1Store]: Array PQE input equivalent to false
[2023-11-19 07:56:06,675 WARN  L214             Elim1Store]: Array PQE input equivalent to false
[2023-11-19 07:56:06,718 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:06,728 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 61
[2023-11-19 07:56:06,792 INFO  L173   IndexEqualityManager]: detected equality via solver
[2023-11-19 07:56:06,797 WARN  L214             Elim1Store]: Array PQE input equivalent to false
[2023-11-19 07:56:06,810 INFO  L173   IndexEqualityManager]: detected equality via solver
[2023-11-19 07:56:06,815 WARN  L214             Elim1Store]: Array PQE input equivalent to false
[2023-11-19 07:56:06,829 INFO  L173   IndexEqualityManager]: detected equality via solver
[2023-11-19 07:56:06,834 WARN  L214             Elim1Store]: Array PQE input equivalent to false
[2023-11-19 07:56:06,849 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:06,865 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:06,867 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:06,885 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 18
[2023-11-19 07:56:06,896 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2023-11-19 07:56:06,901 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2023-11-19 07:56:06,914 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:06,915 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:06,916 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:06,918 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:06,919 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:06,921 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:06,941 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:06,942 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:06,960 INFO  L349             Elim1Store]: treesize reduction 16, result has 5.9 percent of original size
[2023-11-19 07:56:06,961 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 21
[2023-11-19 07:56:07,000 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:07,006 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56
[2023-11-19 07:56:07,049 INFO  L173   IndexEqualityManager]: detected equality via solver
[2023-11-19 07:56:07,053 WARN  L214             Elim1Store]: Array PQE input equivalent to false
[2023-11-19 07:56:07,063 INFO  L173   IndexEqualityManager]: detected equality via solver
[2023-11-19 07:56:07,067 WARN  L214             Elim1Store]: Array PQE input equivalent to false
[2023-11-19 07:56:07,082 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:07,089 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:07,096 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25
[2023-11-19 07:56:07,104 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:07,106 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:07,109 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:07,111 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:07,112 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:07,125 INFO  L349             Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2023-11-19 07:56:07,126 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 14
[2023-11-19 07:56:07,134 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2023-11-19 07:56:07,142 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13
[2023-11-19 07:56:07,162 WARN  L214             Elim1Store]: Array PQE input equivalent to false
[2023-11-19 07:56:07,171 WARN  L214             Elim1Store]: Array PQE input equivalent to false
[2023-11-19 07:56:07,253 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12
[2023-11-19 07:56:07,271 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:56:07,271 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:56:07,271 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:56:07,272 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071373747]
[2023-11-19 07:56:07,272 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-19 07:56:07,272 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301607989]
[2023-11-19 07:56:07,273 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301607989] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:56:07,273 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:56:07,273 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-19 07:56:07,276 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637803551]
[2023-11-19 07:56:07,277 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:56:07,282 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:56:07,282 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:56:07,316 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:56:07,317 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:56:07,320 INFO  L87              Difference]: Start difference. First operand  has 79 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 73 states have internal predecessors, (75), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand  has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:56:07,645 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:56:07,645 INFO  L93              Difference]: Finished difference Result 206 states and 225 transitions.
[2023-11-19 07:56:07,647 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-19 07:56:07,649 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2023-11-19 07:56:07,649 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:56:07,659 INFO  L225             Difference]: With dead ends: 206
[2023-11-19 07:56:07,659 INFO  L226             Difference]: Without dead ends: 122
[2023-11-19 07:56:07,663 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-11-19 07:56:07,667 INFO  L413           NwaCegarLoop]: 56 mSDtfsCounter, 92 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-19 07:56:07,673 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 276 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-19 07:56:07,693 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 122 states.
[2023-11-19 07:56:07,739 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 89.
[2023-11-19 07:56:07,741 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 89 states, 54 states have (on average 1.6851851851851851) internal successors, (91), 82 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5)
[2023-11-19 07:56:07,754 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 100 transitions.
[2023-11-19 07:56:07,758 INFO  L78                 Accepts]: Start accepts. Automaton has 89 states and 100 transitions. Word has length 6
[2023-11-19 07:56:07,759 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:56:07,759 INFO  L495      AbstractCegarLoop]: Abstraction has 89 states and 100 transitions.
[2023-11-19 07:56:07,759 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:56:07,760 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 100 transitions.
[2023-11-19 07:56:07,761 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-11-19 07:56:07,761 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 07:56:07,761 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:56:07,790 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-19 07:56:07,976 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-11-19 07:56:07,977 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2023-11-19 07:56:07,977 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:56:07,978 INFO  L85        PathProgramCache]: Analyzing trace with hash 1367787394, now seen corresponding path program 1 times
[2023-11-19 07:56:07,978 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:56:07,978 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536215538]
[2023-11-19 07:56:07,978 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:56:07,978 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:56:08,045 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-19 07:56:08,050 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1431363251]
[2023-11-19 07:56:08,050 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:56:08,051 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:56:08,051 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:56:08,054 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:56:08,072 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-19 07:56:08,154 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:56:08,156 INFO  L262         TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 40 conjunts are in the unsatisfiable core
[2023-11-19 07:56:08,160 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:56:08,225 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,226 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56
[2023-11-19 07:56:08,243 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,245 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,246 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,250 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,252 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36
[2023-11-19 07:56:08,262 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,275 INFO  L349             Elim1Store]: treesize reduction 16, result has 5.9 percent of original size
[2023-11-19 07:56:08,276 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 110 treesize of output 102
[2023-11-19 07:56:08,291 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28
[2023-11-19 07:56:08,297 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2023-11-19 07:56:08,314 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,315 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 51
[2023-11-19 07:56:08,330 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,332 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,334 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,338 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,340 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31
[2023-11-19 07:56:08,360 INFO  L349             Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2023-11-19 07:56:08,360 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 91
[2023-11-19 07:56:08,373 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23
[2023-11-19 07:56:08,379 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2023-11-19 07:56:08,401 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,403 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56
[2023-11-19 07:56:08,415 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,417 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,419 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,420 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,441 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 48
[2023-11-19 07:56:08,451 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,454 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,455 INFO  L173   IndexEqualityManager]: detected equality via solver
[2023-11-19 07:56:08,468 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,470 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 61
[2023-11-19 07:56:08,486 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,491 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,495 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,500 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,514 INFO  L349             Elim1Store]: treesize reduction 16, result has 5.9 percent of original size
[2023-11-19 07:56:08,515 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 37
[2023-11-19 07:56:08,541 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 58
[2023-11-19 07:56:08,570 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 18
[2023-11-19 07:56:08,578 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,579 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2023-11-19 07:56:08,595 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,596 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56
[2023-11-19 07:56:08,614 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,616 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,617 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,622 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,623 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36
[2023-11-19 07:56:08,635 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,651 INFO  L349             Elim1Store]: treesize reduction 16, result has 5.9 percent of original size
[2023-11-19 07:56:08,652 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 110 treesize of output 102
[2023-11-19 07:56:08,673 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28
[2023-11-19 07:56:08,690 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,692 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 51
[2023-11-19 07:56:08,706 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,708 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,709 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,714 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,715 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31
[2023-11-19 07:56:08,734 INFO  L349             Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2023-11-19 07:56:08,734 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 91
[2023-11-19 07:56:08,746 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23
[2023-11-19 07:56:08,756 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2023-11-19 07:56:08,773 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,781 INFO  L349             Elim1Store]: treesize reduction 23, result has 4.2 percent of original size
[2023-11-19 07:56:08,781 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 23
[2023-11-19 07:56:08,798 INFO  L349             Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2023-11-19 07:56:08,798 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19
[2023-11-19 07:56:08,808 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21
[2023-11-19 07:56:08,842 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,850 INFO  L349             Elim1Store]: treesize reduction 23, result has 4.2 percent of original size
[2023-11-19 07:56:08,850 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 28
[2023-11-19 07:56:08,861 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:56:08,874 INFO  L349             Elim1Store]: treesize reduction 16, result has 5.9 percent of original size
[2023-11-19 07:56:08,875 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 30
[2023-11-19 07:56:08,893 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 21
[2023-11-19 07:56:08,974 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10
[2023-11-19 07:56:08,996 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:56:08,996 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:56:08,996 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:56:08,997 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536215538]
[2023-11-19 07:56:08,997 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-19 07:56:08,997 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431363251]
[2023-11-19 07:56:08,997 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431363251] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:56:08,998 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:56:08,998 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-19 07:56:08,998 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312462094]
[2023-11-19 07:56:08,998 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:56:08,999 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:56:08,999 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:56:09,000 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:56:09,001 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:56:09,001 INFO  L87              Difference]: Start difference. First operand 89 states and 100 transitions. Second operand  has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:56:09,255 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:56:09,255 INFO  L93              Difference]: Finished difference Result 122 states and 124 transitions.
[2023-11-19 07:56:09,256 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-19 07:56:09,256 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2023-11-19 07:56:09,257 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:56:09,258 INFO  L225             Difference]: With dead ends: 122
[2023-11-19 07:56:09,259 INFO  L226             Difference]: Without dead ends: 121
[2023-11-19 07:56:09,259 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-11-19 07:56:09,261 INFO  L413           NwaCegarLoop]: 51 mSDtfsCounter, 87 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-19 07:56:09,261 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 254 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-19 07:56:09,263 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 121 states.
[2023-11-19 07:56:09,273 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 89.
[2023-11-19 07:56:09,274 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 89 states, 54 states have (on average 1.6666666666666667) internal successors, (90), 82 states have internal predecessors, (90), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5)
[2023-11-19 07:56:09,275 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 99 transitions.
[2023-11-19 07:56:09,275 INFO  L78                 Accepts]: Start accepts. Automaton has 89 states and 99 transitions. Word has length 7
[2023-11-19 07:56:09,276 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:56:09,276 INFO  L495      AbstractCegarLoop]: Abstraction has 89 states and 99 transitions.
[2023-11-19 07:56:09,276 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:56:09,276 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 99 transitions.
[2023-11-19 07:56:09,277 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2023-11-19 07:56:09,277 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 07:56:09,277 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:56:09,310 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-11-19 07:56:09,500 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:56:09,501 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_30_to_38_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2023-11-19 07:56:09,501 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:56:09,502 INFO  L85        PathProgramCache]: Analyzing trace with hash 183694308, now seen corresponding path program 1 times
[2023-11-19 07:56:09,502 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:56:09,502 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061612611]
[2023-11-19 07:56:09,502 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:56:09,502 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:56:09,531 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-19 07:56:09,531 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [32171218]
[2023-11-19 07:56:09,532 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:56:09,532 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:56:09,532 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:56:09,533 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:56:09,538 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-19 07:56:09,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:56:09,655 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:56:09,680 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:56:09,721 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:56:09,721 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-11-19 07:56:09,722 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_30_to_38_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining)
[2023-11-19 07:56:09,724 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining)
[2023-11-19 07:56:09,725 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining)
[2023-11-19 07:56:09,725 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining)
[2023-11-19 07:56:09,725 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining)
[2023-11-19 07:56:09,726 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining)
[2023-11-19 07:56:09,726 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining)
[2023-11-19 07:56:09,726 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining)
[2023-11-19 07:56:09,726 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining)
[2023-11-19 07:56:09,726 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining)
[2023-11-19 07:56:09,727 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining)
[2023-11-19 07:56:09,727 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining)
[2023-11-19 07:56:09,727 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining)
[2023-11-19 07:56:09,727 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining)
[2023-11-19 07:56:09,728 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 28 remaining)
[2023-11-19 07:56:09,728 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 28 remaining)
[2023-11-19 07:56:09,728 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining)
[2023-11-19 07:56:09,740 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining)
[2023-11-19 07:56:09,741 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining)
[2023-11-19 07:56:09,741 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining)
[2023-11-19 07:56:09,744 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining)
[2023-11-19 07:56:09,745 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining)
[2023-11-19 07:56:09,745 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining)
[2023-11-19 07:56:09,745 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining)
[2023-11-19 07:56:09,745 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining)
[2023-11-19 07:56:09,745 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining)
[2023-11-19 07:56:09,746 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining)
[2023-11-19 07:56:09,746 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining)
[2023-11-19 07:56:09,777 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-19 07:56:09,961 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:56:09,964 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-11-19 07:56:09,968 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 07:56:09,987 WARN  L1572  BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated
[2023-11-19 07:56:09,988 WARN  L1572  BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated
[2023-11-19 07:56:09,989 WARN  L1572  BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated
[2023-11-19 07:56:09,989 WARN  L1572  BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated
[2023-11-19 07:56:09,990 WARN  L1572  BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated
[2023-11-19 07:56:09,990 WARN  L1572  BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated
[2023-11-19 07:56:09,999 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:56:09 BoogieIcfgContainer
[2023-11-19 07:56:10,004 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 07:56:10,005 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:56:10,006 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:56:10,006 INFO  L274        PluginConnector]: Witness Printer initialized
[2023-11-19 07:56:10,007 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:05" (3/4) ...
[2023-11-19 07:56:10,007 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2023-11-19 07:56:10,015 WARN  L1572  BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated
[2023-11-19 07:56:10,021 WARN  L1572  BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated
[2023-11-19 07:56:10,026 WARN  L1572  BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated
[2023-11-19 07:56:10,027 WARN  L1572  BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated
[2023-11-19 07:56:10,037 WARN  L1572  BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated
[2023-11-19 07:56:10,037 WARN  L1572  BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated
[2023-11-19 07:56:10,071 INFO  L149         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml
[2023-11-19 07:56:10,071 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:56:10,072 INFO  L158              Benchmark]: Toolchain (without parser) took 5414.49ms. Allocated memory was 117.4MB in the beginning and 186.6MB in the end (delta: 69.2MB). Free memory was 82.9MB in the beginning and 102.4MB in the end (delta: -19.5MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB.
[2023-11-19 07:56:10,072 INFO  L158              Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 85.3MB in the beginning and 85.3MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:56:10,073 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 301.91ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 71.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-19 07:56:10,073 INFO  L158              Benchmark]: Boogie Procedure Inliner took 49.59ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 70.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:56:10,073 INFO  L158              Benchmark]: Boogie Preprocessor took 44.83ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 69.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:56:10,074 INFO  L158              Benchmark]: RCFGBuilder took 812.33ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 50.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
[2023-11-19 07:56:10,074 INFO  L158              Benchmark]: TraceAbstraction took 4129.98ms. Allocated memory was 117.4MB in the beginning and 186.6MB in the end (delta: 69.2MB). Free memory was 49.3MB in the beginning and 104.5MB in the end (delta: -55.2MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB.
[2023-11-19 07:56:10,075 INFO  L158              Benchmark]: Witness Printer took 67.01ms. Allocated memory is still 186.6MB. Free memory was 104.5MB in the beginning and 102.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:56:10,077 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 85.3MB in the beginning and 85.3MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 301.91ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 71.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 49.59ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 70.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 44.83ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 69.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
 * RCFGBuilder took 812.33ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 50.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
 * TraceAbstraction took 4129.98ms. Allocated memory was 117.4MB in the beginning and 186.6MB in the end (delta: 69.2MB). Free memory was 49.3MB in the beginning and 104.5MB in the end (delta: -55.2MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB.
 * Witness Printer took 67.01ms. Allocated memory is still 186.6MB. Free memory was 104.5MB in the beginning and 102.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated
  - GenericResult: Unfinished Backtranslation
    The program execution was not completely translated back.
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated
  - GenericResult: Unfinished Backtranslation
    The program execution was not completely translated back.
 * 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
  - CounterExampleResult [Line: 56]: integer overflow possible
    integer overflow possible
We found a FailurePath: 
[L77]        int z;
[L78]        int k;
[L79]        int x;
[L80]        int y;
[L81]        int c;
[L82]        z = __VERIFIER_nondet_int()
[L83]        k = __VERIFIER_nondet_int()
[L84]        x = 1
[L85]        y = 1
[L86]        c = 1
       VAL   [c={8:0}, k={6:0}, x={7:0}, y={5:0}, z={4:0}]
[L87]  CALL  func_to_recursive_line_30_to_38_0(&k, &x, &z, &y, &c)
       VAL   [c={8:0}, k={6:0}, x={7:0}, y={5:0}, z={4:0}]
[L56]  EXPR  \read(*x)
[L56]  EXPR  \read(*z)
       VAL   [c={8:0}, c={8:0}, k={6:0}, k={6:0}, x={7:0}, x={7:0}, y={5:0}, y={5:0}, z={4:0}, z={4:0}]
[L56]  EXPR  (*x) * (*z)
       VAL   [c={8:0}, c={8:0}, k={6:0}, k={6:0}, x={7:0}, x={7:0}, y={5:0}, y={5:0}, z={4:0}, z={4:0}]
[L56]        1 + ((*x) * (*z))
       VAL   [c={8:0}, c={8:0}, k={6:0}, k={6:0}, x={7:0}, x={7:0}, y={5:0}, y={5:0}, z={4:0}, z={4:0}]

  - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 3 procedures, 79 locations, 28 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 180 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 530 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 423 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 231 IncrementalHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 107 mSDtfsCounter, 231 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=1, InterpolantAutomatonStates: 12, 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, 2 MinimizatonAttempts, 65 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 145 SizeOfPredicates, 28 NumberOfNonLiveVariables, 309 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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
RESULT: Ultimate proved your program to be incorrect!
[2023-11-19 07:56:10,119 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac9de87-217b-441e-988d-ad8990f13c08/bin/uautomizer-verify-uCwYo4JHxu/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
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(OVERFLOW)