./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i --full-output --architecture 32bit


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


Checking for overflows
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --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 dbea62dc4a872959247118f049e63d406eb1e848bb1ed8397f1082fdec77074c
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-2329fc7
[2022-12-13 13:48:53,797 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-12-13 13:48:53,799 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-12-13 13:48:53,817 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-12-13 13:48:53,817 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-12-13 13:48:53,818 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-12-13 13:48:53,819 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-12-13 13:48:53,821 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-12-13 13:48:53,822 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-12-13 13:48:53,823 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-12-13 13:48:53,824 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-12-13 13:48:53,825 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-12-13 13:48:53,825 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-12-13 13:48:53,826 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-12-13 13:48:53,827 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-12-13 13:48:53,828 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-12-13 13:48:53,829 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-12-13 13:48:53,830 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-12-13 13:48:53,831 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-12-13 13:48:53,833 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-12-13 13:48:53,834 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-12-13 13:48:53,835 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-12-13 13:48:53,836 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-12-13 13:48:53,837 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-12-13 13:48:53,840 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-12-13 13:48:53,840 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-12-13 13:48:53,841 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-12-13 13:48:53,841 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-12-13 13:48:53,842 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-12-13 13:48:53,843 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-12-13 13:48:53,843 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-12-13 13:48:53,844 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-12-13 13:48:53,844 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-12-13 13:48:53,845 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-12-13 13:48:53,846 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-12-13 13:48:53,846 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-12-13 13:48:53,846 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-12-13 13:48:53,847 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-12-13 13:48:53,847 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-12-13 13:48:53,847 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-12-13 13:48:53,848 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-12-13 13:48:53,849 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2022-12-13 13:48:53,862 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-12-13 13:48:53,863 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-12-13 13:48:53,863 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-12-13 13:48:53,863 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-12-13 13:48:53,863 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-12-13 13:48:53,863 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-12-13 13:48:53,864 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-12-13 13:48:53,864 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-12-13 13:48:53,864 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-12-13 13:48:53,864 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-12-13 13:48:53,864 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-12-13 13:48:53,864 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-12-13 13:48:53,864 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-12-13 13:48:53,865 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-12-13 13:48:53,865 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-12-13 13:48:53,865 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-12-13 13:48:53,865 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-12-13 13:48:53,865 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-12-13 13:48:53,865 INFO  L138        SettingsManager]:  * Check absence of signed integer overflows=true
[2022-12-13 13:48:53,865 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-12-13 13:48:53,865 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-12-13 13:48:53,865 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-12-13 13:48:53,865 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-12-13 13:48:53,865 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-12-13 13:48:53,866 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-12-13 13:48:53,866 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-12-13 13:48:53,866 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 13:48:53,866 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-12-13 13:48:53,866 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-12-13 13:48:53,866 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-12-13 13:48:53,866 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-12-13 13:48:53,866 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-12-13 13:48:53,866 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-12-13 13:48:53,866 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-12-13 13:48:53,866 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2022-12-13 13:48:53,867 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-12-13 13:48:53,867 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2022-12-13 13:48:53,867 INFO  L138        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_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/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_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
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 -> dbea62dc4a872959247118f049e63d406eb1e848bb1ed8397f1082fdec77074c
[2022-12-13 13:48:54,053 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-12-13 13:48:54,074 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-12-13 13:48:54,077 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-12-13 13:48:54,078 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-12-13 13:48:54,078 INFO  L275        PluginConnector]: CDTParser initialized
[2022-12-13 13:48:54,079 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i
[2022-12-13 13:48:56,637 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2022-12-13 13:48:56,825 INFO  L351              CDTParser]: Found 1 translation units.
[2022-12-13 13:48:56,826 INFO  L172              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i
[2022-12-13 13:48:56,836 INFO  L394              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/data/ad7b5e7b9/f4b91d738bf94c28903c272f6af1cc40/FLAGaa6a7080e
[2022-12-13 13:48:56,846 INFO  L402              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/data/ad7b5e7b9/f4b91d738bf94c28903c272f6af1cc40
[2022-12-13 13:48:56,848 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-12-13 13:48:56,849 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-12-13 13:48:56,850 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-12-13 13:48:56,850 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-12-13 13:48:56,854 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-12-13 13:48:56,855 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:48:56" (1/1) ...
[2022-12-13 13:48:56,856 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77a336d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:56, skipping insertion in model container
[2022-12-13 13:48:56,856 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:48:56" (1/1) ...
[2022-12-13 13:48:56,862 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-12-13 13:48:56,902 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-12-13 13:48:57,224 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i[37019,37032]
[2022-12-13 13:48:57,281 WARN  L623        FunctionHandler]: Unknown extern function memcmp
[2022-12-13 13:48:57,283 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i[47352,47365]
[2022-12-13 13:48:57,287 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-13 13:48:57,295 INFO  L203         MainTranslator]: Completed pre-run
[2022-12-13 13:48:57,316 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i[37019,37032]
[2022-12-13 13:48:57,349 WARN  L623        FunctionHandler]: Unknown extern function memcmp
[2022-12-13 13:48:57,351 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i[47352,47365]
[2022-12-13 13:48:57,352 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-13 13:48:57,405 INFO  L208         MainTranslator]: Completed translation
[2022-12-13 13:48:57,405 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:57 WrapperNode
[2022-12-13 13:48:57,405 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-12-13 13:48:57,406 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-12-13 13:48:57,406 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-12-13 13:48:57,406 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-12-13 13:48:57,412 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:57" (1/1) ...
[2022-12-13 13:48:57,429 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:57" (1/1) ...
[2022-12-13 13:48:57,463 INFO  L138                Inliner]: procedures = 208, calls = 235, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 888
[2022-12-13 13:48:57,463 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-12-13 13:48:57,464 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-12-13 13:48:57,464 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-12-13 13:48:57,464 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-12-13 13:48:57,471 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:57" (1/1) ...
[2022-12-13 13:48:57,471 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:57" (1/1) ...
[2022-12-13 13:48:57,477 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:57" (1/1) ...
[2022-12-13 13:48:57,477 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:57" (1/1) ...
[2022-12-13 13:48:57,501 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:57" (1/1) ...
[2022-12-13 13:48:57,508 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:57" (1/1) ...
[2022-12-13 13:48:57,510 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:57" (1/1) ...
[2022-12-13 13:48:57,513 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:57" (1/1) ...
[2022-12-13 13:48:57,518 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-12-13 13:48:57,519 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-12-13 13:48:57,519 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-12-13 13:48:57,519 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-12-13 13:48:57,519 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:57" (1/1) ...
[2022-12-13 13:48:57,525 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 13:48:57,534 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 13:48:57,545 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-12-13 13:48:57,547 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-12-13 13:48:57,577 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset
[2022-12-13 13:48:57,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset
[2022-12-13 13:48:57,578 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-12-13 13:48:57,578 INFO  L130     BoogieDeclarations]: Found specification of procedure memcmp
[2022-12-13 13:48:57,578 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2022-12-13 13:48:57,578 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-12-13 13:48:57,578 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-12-13 13:48:57,578 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-12-13 13:48:57,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-12-13 13:48:57,578 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-12-13 13:48:57,578 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2022-12-13 13:48:57,579 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-12-13 13:48:57,579 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2022-12-13 13:48:57,579 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-12-13 13:48:57,579 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-12-13 13:48:57,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-12-13 13:48:57,719 INFO  L235             CfgBuilder]: Building ICFG
[2022-12-13 13:48:57,720 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-12-13 13:48:58,692 INFO  L276             CfgBuilder]: Performing block encoding
[2022-12-13 13:48:58,700 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-12-13 13:48:58,701 INFO  L300             CfgBuilder]: Removed 54 assume(true) statements.
[2022-12-13 13:48:58,703 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:48:58 BoogieIcfgContainer
[2022-12-13 13:48:58,703 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-12-13 13:48:58,705 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-12-13 13:48:58,706 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-12-13 13:48:58,709 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-12-13 13:48:58,709 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:48:56" (1/3) ...
[2022-12-13 13:48:58,709 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3c9f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:48:58, skipping insertion in model container
[2022-12-13 13:48:58,710 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:57" (2/3) ...
[2022-12-13 13:48:58,710 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3c9f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:48:58, skipping insertion in model container
[2022-12-13 13:48:58,710 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:48:58" (3/3) ...
[2022-12-13 13:48:58,711 INFO  L112   eAbstractionObserver]: Analyzing ICFG uthash_SAX_test2-1.i
[2022-12-13 13:48:58,731 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-12-13 13:48:58,731 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations.
[2022-12-13 13:48:58,768 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-12-13 13:48:58,773 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=LoopsAndPotentialCycles, 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;@2533246d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2022-12-13 13:48:58,773 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 8 error locations.
[2022-12-13 13:48:58,776 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 187 states, 168 states have (on average 1.7023809523809523) internal successors, (286), 181 states have internal predecessors, (286), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8)
[2022-12-13 13:48:58,780 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-12-13 13:48:58,780 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 13:48:58,781 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-12-13 13:48:58,781 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] ===
[2022-12-13 13:48:58,785 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 13:48:58,785 INFO  L85        PathProgramCache]: Analyzing trace with hash 552713999, now seen corresponding path program 1 times
[2022-12-13 13:48:58,792 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 13:48:58,792 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138997413]
[2022-12-13 13:48:58,792 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 13:48:58,793 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 13:48:58,867 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 13:48:58,889 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 13:48:58,889 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138997413]
[2022-12-13 13:48:58,889 WARN  L310   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2022-12-13 13:48:58,890 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390620049]
[2022-12-13 13:48:58,890 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 13:48:58,890 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 13:48:58,890 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 13:48:58,891 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 13:48:58,892 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-12-13 13:48:58,987 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 13:48:58,989 INFO  L263         TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-12-13 13:48:58,994 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 13:48:59,011 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 13:48:59,011 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 13:48:59,012 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390620049] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 13:48:59,012 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 13:48:59,012 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 13:48:59,014 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791831543]
[2022-12-13 13:48:59,014 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 13:48:59,017 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-12-13 13:48:59,017 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 13:48:59,039 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-12-13 13:48:59,039 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-13 13:48:59,041 INFO  L87              Difference]: Start difference. First operand  has 187 states, 168 states have (on average 1.7023809523809523) internal successors, (286), 181 states have internal predecessors, (286), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 13:48:59,072 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 13:48:59,072 INFO  L93              Difference]: Finished difference Result 372 states and 607 transitions.
[2022-12-13 13:48:59,073 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 13:48:59,074 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2022-12-13 13:48:59,074 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 13:48:59,080 INFO  L225             Difference]: With dead ends: 372
[2022-12-13 13:48:59,080 INFO  L226             Difference]: Without dead ends: 183
[2022-12-13 13:48:59,083 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-13 13:48:59,085 INFO  L413           NwaCegarLoop]: 242 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-12-13 13:48:59,086 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-12-13 13:48:59,098 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 183 states.
[2022-12-13 13:48:59,115 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183.
[2022-12-13 13:48:59,116 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 183 states, 165 states have (on average 1.3454545454545455) internal successors, (222), 177 states have internal predecessors, (222), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8)
[2022-12-13 13:48:59,117 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 238 transitions.
[2022-12-13 13:48:59,118 INFO  L78                 Accepts]: Start accepts. Automaton has 183 states and 238 transitions. Word has length 7
[2022-12-13 13:48:59,118 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 13:48:59,119 INFO  L495      AbstractCegarLoop]: Abstraction has 183 states and 238 transitions.
[2022-12-13 13:48:59,119 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 13:48:59,119 INFO  L276                IsEmpty]: Start isEmpty. Operand 183 states and 238 transitions.
[2022-12-13 13:48:59,119 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-12-13 13:48:59,119 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 13:48:59,119 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-12-13 13:48:59,125 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-12-13 13:48:59,320 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 13:48:59,321 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] ===
[2022-12-13 13:48:59,321 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 13:48:59,321 INFO  L85        PathProgramCache]: Analyzing trace with hash 552715921, now seen corresponding path program 1 times
[2022-12-13 13:48:59,322 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 13:48:59,322 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277567142]
[2022-12-13 13:48:59,322 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 13:48:59,322 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 13:48:59,356 ERROR L245   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-12-13 13:48:59,357 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1088851772]
[2022-12-13 13:48:59,357 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 13:48:59,358 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 13:48:59,358 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 13:48:59,360 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 13:48:59,362 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-12-13 13:48:59,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 13:48:59,491 INFO  L263         TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core
[2022-12-13 13:48:59,493 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 13:48:59,532 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7
[2022-12-13 13:48:59,542 INFO  L350             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 6 treesize of output 5
[2022-12-13 13:48:59,572 INFO  L321             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-12-13 13:48:59,572 INFO  L350             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 11 treesize of output 11
[2022-12-13 13:48:59,603 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-12-13 13:48:59,605 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2022-12-13 13:48:59,611 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 13:48:59,612 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 13:48:59,612 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 13:48:59,612 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277567142]
[2022-12-13 13:48:59,612 WARN  L310   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-12-13 13:48:59,612 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088851772]
[2022-12-13 13:48:59,612 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088851772] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 13:48:59,613 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 13:48:59,613 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-12-13 13:48:59,613 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802112193]
[2022-12-13 13:48:59,613 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 13:48:59,614 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-12-13 13:48:59,614 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 13:48:59,614 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-12-13 13:48:59,615 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-12-13 13:48:59,615 INFO  L87              Difference]: Start difference. First operand 183 states and 238 transitions. Second operand  has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 13:49:00,212 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 13:49:00,213 INFO  L93              Difference]: Finished difference Result 310 states and 409 transitions.
[2022-12-13 13:49:00,213 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-12-13 13:49:00,213 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2022-12-13 13:49:00,213 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 13:49:00,214 INFO  L225             Difference]: With dead ends: 310
[2022-12-13 13:49:00,215 INFO  L226             Difference]: Without dead ends: 308
[2022-12-13 13:49:00,215 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-12-13 13:49:00,216 INFO  L413           NwaCegarLoop]: 196 mSDtfsCounter, 195 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-12-13 13:49:00,216 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 704 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-12-13 13:49:00,216 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 308 states.
[2022-12-13 13:49:00,228 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 189.
[2022-12-13 13:49:00,228 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 189 states, 171 states have (on average 1.3391812865497077) internal successors, (229), 183 states have internal predecessors, (229), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8)
[2022-12-13 13:49:00,229 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 245 transitions.
[2022-12-13 13:49:00,229 INFO  L78                 Accepts]: Start accepts. Automaton has 189 states and 245 transitions. Word has length 7
[2022-12-13 13:49:00,229 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 13:49:00,230 INFO  L495      AbstractCegarLoop]: Abstraction has 189 states and 245 transitions.
[2022-12-13 13:49:00,230 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 13:49:00,230 INFO  L276                IsEmpty]: Start isEmpty. Operand 189 states and 245 transitions.
[2022-12-13 13:49:00,230 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2022-12-13 13:49:00,230 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 13:49:00,231 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 13:49:00,235 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2022-12-13 13:49:00,431 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2022-12-13 13:49:00,433 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] ===
[2022-12-13 13:49:00,434 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 13:49:00,434 INFO  L85        PathProgramCache]: Analyzing trace with hash -713285695, now seen corresponding path program 1 times
[2022-12-13 13:49:00,434 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 13:49:00,435 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867594986]
[2022-12-13 13:49:00,435 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 13:49:00,436 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 13:49:00,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 13:49:00,692 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 13:49:00,692 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 13:49:00,692 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867594986]
[2022-12-13 13:49:00,693 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867594986] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 13:49:00,693 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 13:49:00,693 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-12-13 13:49:00,693 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880733001]
[2022-12-13 13:49:00,693 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 13:49:00,694 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-13 13:49:00,694 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 13:49:00,694 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-13 13:49:00,694 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-12-13 13:49:00,695 INFO  L87              Difference]: Start difference. First operand 189 states and 245 transitions. Second operand  has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 13:49:00,943 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 13:49:00,943 INFO  L93              Difference]: Finished difference Result 350 states and 463 transitions.
[2022-12-13 13:49:00,944 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-12-13 13:49:00,944 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44
[2022-12-13 13:49:00,944 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 13:49:00,945 INFO  L225             Difference]: With dead ends: 350
[2022-12-13 13:49:00,946 INFO  L226             Difference]: Without dead ends: 267
[2022-12-13 13:49:00,946 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-12-13 13:49:00,947 INFO  L413           NwaCegarLoop]: 217 mSDtfsCounter, 100 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-12-13 13:49:00,948 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 595 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-12-13 13:49:00,949 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 267 states.
[2022-12-13 13:49:00,958 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 189.
[2022-12-13 13:49:00,958 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 189 states, 171 states have (on average 1.3333333333333333) internal successors, (228), 183 states have internal predecessors, (228), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8)
[2022-12-13 13:49:00,959 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 244 transitions.
[2022-12-13 13:49:00,959 INFO  L78                 Accepts]: Start accepts. Automaton has 189 states and 244 transitions. Word has length 44
[2022-12-13 13:49:00,960 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 13:49:00,960 INFO  L495      AbstractCegarLoop]: Abstraction has 189 states and 244 transitions.
[2022-12-13 13:49:00,960 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 13:49:00,960 INFO  L276                IsEmpty]: Start isEmpty. Operand 189 states and 244 transitions.
[2022-12-13 13:49:00,961 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2022-12-13 13:49:00,961 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 13:49:00,961 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 13:49:00,961 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-12-13 13:49:00,962 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] ===
[2022-12-13 13:49:00,962 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 13:49:00,962 INFO  L85        PathProgramCache]: Analyzing trace with hash -1818750011, now seen corresponding path program 1 times
[2022-12-13 13:49:00,962 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 13:49:00,962 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668965096]
[2022-12-13 13:49:00,962 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 13:49:00,963 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 13:49:01,055 ERROR L245   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-12-13 13:49:01,055 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [931951710]
[2022-12-13 13:49:01,056 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 13:49:01,056 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 13:49:01,056 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 13:49:01,057 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 13:49:01,058 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-12-13 13:49:01,481 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 13:49:01,487 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-12-13 13:49:01,489 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 13:49:01,500 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 13:49:01,500 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 13:49:01,500 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 13:49:01,501 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668965096]
[2022-12-13 13:49:01,501 WARN  L310   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-12-13 13:49:01,501 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931951710]
[2022-12-13 13:49:01,501 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [931951710] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 13:49:01,501 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 13:49:01,501 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 13:49:01,501 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359818220]
[2022-12-13 13:49:01,501 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 13:49:01,502 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 13:49:01,502 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 13:49:01,502 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 13:49:01,503 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 13:49:01,503 INFO  L87              Difference]: Start difference. First operand 189 states and 244 transitions. Second operand  has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 13:49:01,561 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 13:49:01,562 INFO  L93              Difference]: Finished difference Result 391 states and 511 transitions.
[2022-12-13 13:49:01,562 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 13:49:01,562 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57
[2022-12-13 13:49:01,562 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 13:49:01,563 INFO  L225             Difference]: With dead ends: 391
[2022-12-13 13:49:01,563 INFO  L226             Difference]: Without dead ends: 210
[2022-12-13 13:49:01,564 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 13:49:01,564 INFO  L413           NwaCegarLoop]: 218 mSDtfsCounter, 9 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-12-13 13:49:01,564 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 421 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-12-13 13:49:01,565 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 210 states.
[2022-12-13 13:49:01,570 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209.
[2022-12-13 13:49:01,570 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 209 states, 191 states have (on average 1.2984293193717278) internal successors, (248), 203 states have internal predecessors, (248), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8)
[2022-12-13 13:49:01,571 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 264 transitions.
[2022-12-13 13:49:01,571 INFO  L78                 Accepts]: Start accepts. Automaton has 209 states and 264 transitions. Word has length 57
[2022-12-13 13:49:01,571 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 13:49:01,571 INFO  L495      AbstractCegarLoop]: Abstraction has 209 states and 264 transitions.
[2022-12-13 13:49:01,571 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 13:49:01,571 INFO  L276                IsEmpty]: Start isEmpty. Operand 209 states and 264 transitions.
[2022-12-13 13:49:01,572 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2022-12-13 13:49:01,572 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 13:49:01,572 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 13:49:01,580 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2022-12-13 13:49:01,773 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 13:49:01,773 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] ===
[2022-12-13 13:49:01,774 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 13:49:01,774 INFO  L85        PathProgramCache]: Analyzing trace with hash -1309276921, now seen corresponding path program 1 times
[2022-12-13 13:49:01,774 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 13:49:01,774 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374826776]
[2022-12-13 13:49:01,774 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 13:49:01,775 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 13:49:01,970 ERROR L245   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-12-13 13:49:01,970 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [802006976]
[2022-12-13 13:49:01,971 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 13:49:01,971 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 13:49:01,971 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 13:49:01,972 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 13:49:01,973 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-12-13 13:49:02,395 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 13:49:02,402 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1540 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-12-13 13:49:02,404 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 13:49:02,417 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 13:49:02,417 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 13:49:02,417 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 13:49:02,417 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374826776]
[2022-12-13 13:49:02,418 WARN  L310   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-12-13 13:49:02,418 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802006976]
[2022-12-13 13:49:02,418 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [802006976] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 13:49:02,418 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 13:49:02,418 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-12-13 13:49:02,418 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317046628]
[2022-12-13 13:49:02,418 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 13:49:02,419 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-13 13:49:02,419 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 13:49:02,419 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-13 13:49:02,419 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-12-13 13:49:02,419 INFO  L87              Difference]: Start difference. First operand 209 states and 264 transitions. Second operand  has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 13:49:02,472 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 13:49:02,472 INFO  L93              Difference]: Finished difference Result 400 states and 510 transitions.
[2022-12-13 13:49:02,472 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-12-13 13:49:02,473 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57
[2022-12-13 13:49:02,473 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 13:49:02,473 INFO  L225             Difference]: With dead ends: 400
[2022-12-13 13:49:02,473 INFO  L226             Difference]: Without dead ends: 199
[2022-12-13 13:49:02,474 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-12-13 13:49:02,475 INFO  L413           NwaCegarLoop]: 220 mSDtfsCounter, 210 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-12-13 13:49:02,475 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 453 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-12-13 13:49:02,476 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 199 states.
[2022-12-13 13:49:02,480 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 195.
[2022-12-13 13:49:02,480 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 195 states, 177 states have (on average 1.2824858757062148) internal successors, (227), 189 states have internal predecessors, (227), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8)
[2022-12-13 13:49:02,480 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 243 transitions.
[2022-12-13 13:49:02,481 INFO  L78                 Accepts]: Start accepts. Automaton has 195 states and 243 transitions. Word has length 57
[2022-12-13 13:49:02,481 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 13:49:02,481 INFO  L495      AbstractCegarLoop]: Abstraction has 195 states and 243 transitions.
[2022-12-13 13:49:02,481 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 13:49:02,481 INFO  L276                IsEmpty]: Start isEmpty. Operand 195 states and 243 transitions.
[2022-12-13 13:49:02,482 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2022-12-13 13:49:02,482 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 13:49:02,482 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 13:49:02,489 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2022-12-13 13:49:02,683 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 13:49:02,684 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] ===
[2022-12-13 13:49:02,685 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 13:49:02,685 INFO  L85        PathProgramCache]: Analyzing trace with hash 714659257, now seen corresponding path program 1 times
[2022-12-13 13:49:02,686 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 13:49:02,686 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845854691]
[2022-12-13 13:49:02,686 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 13:49:02,687 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 13:49:02,921 ERROR L245   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-12-13 13:49:02,921 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1049177970]
[2022-12-13 13:49:02,921 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 13:49:02,921 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 13:49:02,922 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 13:49:02,923 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 13:49:02,924 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-12-13 13:49:03,302 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 13:49:03,309 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1526 conjuncts, 5 conjunts are in the unsatisfiable core
[2022-12-13 13:49:03,312 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 13:49:03,418 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 13:49:03,418 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 13:49:03,419 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 13:49:03,419 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845854691]
[2022-12-13 13:49:03,419 WARN  L310   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-12-13 13:49:03,419 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049177970]
[2022-12-13 13:49:03,419 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049177970] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 13:49:03,419 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 13:49:03,419 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 13:49:03,419 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542096621]
[2022-12-13 13:49:03,420 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 13:49:03,420 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 13:49:03,420 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 13:49:03,421 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 13:49:03,421 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 13:49:03,421 INFO  L87              Difference]: Start difference. First operand 195 states and 243 transitions. Second operand  has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 13:49:03,479 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 13:49:03,479 INFO  L93              Difference]: Finished difference Result 486 states and 611 transitions.
[2022-12-13 13:49:03,480 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 13:49:03,480 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57
[2022-12-13 13:49:03,480 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 13:49:03,482 INFO  L225             Difference]: With dead ends: 486
[2022-12-13 13:49:03,482 INFO  L226             Difference]: Without dead ends: 299
[2022-12-13 13:49:03,483 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 13:49:03,484 INFO  L413           NwaCegarLoop]: 284 mSDtfsCounter, 88 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-12-13 13:49:03,484 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 493 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-12-13 13:49:03,484 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 299 states.
[2022-12-13 13:49:03,490 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 295.
[2022-12-13 13:49:03,491 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 295 states, 272 states have (on average 1.2794117647058822) internal successors, (348), 289 states have internal predecessors, (348), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13)
[2022-12-13 13:49:03,492 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 374 transitions.
[2022-12-13 13:49:03,492 INFO  L78                 Accepts]: Start accepts. Automaton has 295 states and 374 transitions. Word has length 57
[2022-12-13 13:49:03,492 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 13:49:03,492 INFO  L495      AbstractCegarLoop]: Abstraction has 295 states and 374 transitions.
[2022-12-13 13:49:03,492 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 13:49:03,492 INFO  L276                IsEmpty]: Start isEmpty. Operand 295 states and 374 transitions.
[2022-12-13 13:49:03,493 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 73
[2022-12-13 13:49:03,493 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 13:49:03,493 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 13:49:03,500 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2022-12-13 13:49:03,694 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2022-12-13 13:49:03,696 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] ===
[2022-12-13 13:49:03,696 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 13:49:03,697 INFO  L85        PathProgramCache]: Analyzing trace with hash -782777269, now seen corresponding path program 1 times
[2022-12-13 13:49:03,697 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 13:49:03,697 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061586723]
[2022-12-13 13:49:03,698 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 13:49:03,698 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 13:49:03,767 ERROR L245   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-12-13 13:49:03,768 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [380082267]
[2022-12-13 13:49:03,768 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 13:49:03,768 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 13:49:03,768 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 13:49:03,769 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 13:49:03,769 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69053427-d0c6-443c-b548-84b6c390046e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-12-13 13:49:04,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 13:49:04,147 INFO  L263         TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 155 conjunts are in the unsatisfiable core
[2022-12-13 13:49:04,156 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 13:49:04,165 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7
[2022-12-13 13:49:04,172 INFO  L350             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 6 treesize of output 5
[2022-12-13 13:49:04,203 INFO  L321             Elim1Store]: treesize reduction 18, result has 35.7 percent of original size
[2022-12-13 13:49:04,204 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21
[2022-12-13 13:49:04,244 INFO  L350             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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-12-13 13:49:04,278 INFO  L350             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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-12-13 13:49:04,585 INFO  L350             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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-12-13 13:49:04,601 INFO  L350             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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-12-13 13:49:04,621 INFO  L350             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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-12-13 13:49:04,627 INFO  L350             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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2022-12-13 13:49:04,638 INFO  L321             Elim1Store]: treesize reduction 8, result has 72.4 percent of original size
[2022-12-13 13:49:04,638 INFO  L350             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 22 treesize of output 30
[2022-12-13 13:49:04,690 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9
[2022-12-13 13:49:04,694 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 treesize of output 3
[2022-12-13 13:49:16,293 INFO  L217             Elim1Store]: Index analysis took 446 ms