/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/array-patterns/array30_pattern.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-11 03:16:52,874 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-11 03:16:52,876 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-11 03:16:52,934 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-11 03:16:52,935 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-11 03:16:52,936 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-11 03:16:52,940 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-11 03:16:52,957 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-11 03:16:52,958 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-11 03:16:52,962 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-01-11 03:16:52,963 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-01-11 03:16:52,963 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-11 03:16:52,964 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-11 03:16:52,964 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-11 03:16:52,965 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-11 03:16:52,965 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-11 03:16:52,966 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-11 03:16:52,966 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-11 03:16:52,967 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-11 03:16:52,968 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-11 03:16:52,969 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-11 03:16:52,969 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-11 03:16:52,970 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-11 03:16:52,970 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-11 03:16:52,972 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-11 03:16:52,972 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-11 03:16:52,972 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-11 03:16:52,973 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-11 03:16:52,973 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-11 03:16:52,974 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-11 03:16:52,974 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-11 03:16:52,974 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-11 03:16:52,975 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-11 03:16:52,975 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-11 03:16:52,976 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-11 03:16:52,976 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-11 03:16:52,976 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-11 03:16:52,976 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-11 03:16:52,976 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-11 03:16:52,977 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-11 03:16:52,977 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-11 03:16:52,978 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf
[2022-01-11 03:16:53,005 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-11 03:16:53,006 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-11 03:16:53,006 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-11 03:16:53,006 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-11 03:16:53,007 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-11 03:16:53,007 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-11 03:16:53,007 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-11 03:16:53,007 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-11 03:16:53,007 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-11 03:16:53,007 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-11 03:16:53,007 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-11 03:16:53,007 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-11 03:16:53,007 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-11 03:16:53,007 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-11 03:16:53,007 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-11 03:16:53,008 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-11 03:16:53,008 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-11 03:16:53,008 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-11 03:16:53,008 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-11 03:16:53,008 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-11 03:16:53,008 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-11 03:16:53,008 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-11 03:16:53,008 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-11 03:16:53,008 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-11 03:16:53,008 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-11 03:16:53,009 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-11 03:16:53,009 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-11 03:16:53,009 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-11 03:16:53,009 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-11 03:16:53,009 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-11 03:16:53,009 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-11 03:16:53,009 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-11 03:16:53,010 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-11 03:16:53,010 INFO  L138        SettingsManager]:  * TransformationType=BV_TO_INT_SUM
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-11 03:16:53,167 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-11 03:16:53,190 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-11 03:16:53,191 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-11 03:16:53,192 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-11 03:16:53,197 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-11 03:16:53,198 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array30_pattern.c
[2022-01-11 03:16:53,253 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b529b5bcc/d5fc03a00db842588f761d8caec632bd/FLAG1a523db48
[2022-01-11 03:16:53,604 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-11 03:16:53,605 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array30_pattern.c
[2022-01-11 03:16:53,609 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b529b5bcc/d5fc03a00db842588f761d8caec632bd/FLAG1a523db48
[2022-01-11 03:16:54,034 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b529b5bcc/d5fc03a00db842588f761d8caec632bd
[2022-01-11 03:16:54,035 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-11 03:16:54,036 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-11 03:16:54,037 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-11 03:16:54,037 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-11 03:16:54,048 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-11 03:16:54,048 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:16:54" (1/1) ...
[2022-01-11 03:16:54,049 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cbe191c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:16:54, skipping insertion in model container
[2022-01-11 03:16:54,049 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:16:54" (1/1) ...
[2022-01-11 03:16:54,053 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-11 03:16:54,065 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-11 03:16:54,235 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array30_pattern.c[1189,1202]
[2022-01-11 03:16:54,265 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 03:16:54,277 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-11 03:16:54,295 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array30_pattern.c[1189,1202]
[2022-01-11 03:16:54,319 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 03:16:54,335 INFO  L208         MainTranslator]: Completed translation
[2022-01-11 03:16:54,340 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:16:54 WrapperNode
[2022-01-11 03:16:54,340 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-11 03:16:54,342 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-11 03:16:54,343 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-11 03:16:54,343 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-11 03:16:54,375 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:16:54" (1/1) ...
[2022-01-11 03:16:54,391 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:16:54" (1/1) ...
[2022-01-11 03:16:54,427 INFO  L137                Inliner]: procedures = 19, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 78
[2022-01-11 03:16:54,428 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-11 03:16:54,428 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-11 03:16:54,428 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-11 03:16:54,428 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-11 03:16:54,453 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:16:54" (1/1) ...
[2022-01-11 03:16:54,453 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:16:54" (1/1) ...
[2022-01-11 03:16:54,458 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:16:54" (1/1) ...
[2022-01-11 03:16:54,459 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:16:54" (1/1) ...
[2022-01-11 03:16:54,472 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:16:54" (1/1) ...
[2022-01-11 03:16:54,476 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:16:54" (1/1) ...
[2022-01-11 03:16:54,484 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:16:54" (1/1) ...
[2022-01-11 03:16:54,486 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-11 03:16:54,487 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-11 03:16:54,487 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-11 03:16:54,487 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-11 03:16:54,489 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:16:54" (1/1) ...
[2022-01-11 03:16:54,494 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-11 03:16:54,504 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 03:16:54,521 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-01-11 03:16:54,541 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-01-11 03:16:54,564 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-11 03:16:54,565 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-11 03:16:54,565 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-01-11 03:16:54,565 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2022-01-11 03:16:54,565 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-11 03:16:54,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-11 03:16:54,565 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-01-11 03:16:54,565 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2022-01-11 03:16:54,636 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-11 03:16:54,637 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-11 03:16:54,974 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-11 03:16:54,978 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-11 03:16:54,978 INFO  L299             CfgBuilder]: Removed 4 assume(true) statements.
[2022-01-11 03:16:54,979 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:16:54 BoogieIcfgContainer
[2022-01-11 03:16:54,979 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-11 03:16:54,980 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-11 03:16:54,980 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-11 03:16:54,981 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-11 03:16:54,982 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:16:54" (1/1) ...
[2022-01-11 03:16:55,081 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:16:55 BasicIcfg
[2022-01-11 03:16:55,081 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-11 03:16:55,082 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-11 03:16:55,082 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-11 03:16:55,084 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-11 03:16:55,084 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 03:16:54" (1/4) ...
[2022-01-11 03:16:55,085 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71468aa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:16:55, skipping insertion in model container
[2022-01-11 03:16:55,085 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:16:54" (2/4) ...
[2022-01-11 03:16:55,086 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71468aa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:16:55, skipping insertion in model container
[2022-01-11 03:16:55,086 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:16:54" (3/4) ...
[2022-01-11 03:16:55,086 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71468aa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 03:16:55, skipping insertion in model container
[2022-01-11 03:16:55,086 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:16:55" (4/4) ...
[2022-01-11 03:16:55,087 INFO  L111   eAbstractionObserver]: Analyzing ICFG array30_pattern.cTransformedIcfg
[2022-01-11 03:16:55,090 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-11 03:16:55,090 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-11 03:16:55,118 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-11 03:16:55,123 INFO  L339      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, mLoopAccelerationTechnique=FAST_UPR
[2022-01-11 03:16:55,124 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-11 03:16:55,132 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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)
[2022-01-11 03:16:55,135 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2022-01-11 03:16:55,135 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 03:16:55,135 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 03:16:55,135 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 03:16:55,138 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 03:16:55,139 INFO  L85        PathProgramCache]: Analyzing trace with hash 1533783506, now seen corresponding path program 1 times
[2022-01-11 03:16:55,144 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 03:16:55,144 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489163044]
[2022-01-11 03:16:55,144 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:16:55,145 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 03:16:55,211 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 03:16:55,261 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 03:16:55,261 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 03:16:55,262 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489163044]
[2022-01-11 03:16:55,263 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489163044] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 03:16:55,263 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 03:16:55,263 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-11 03:16:55,264 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791225199]
[2022-01-11 03:16:55,266 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 03:16:55,268 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-01-11 03:16:55,268 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 03:16:55,290 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-01-11 03:16:55,291 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-11 03:16:55,293 INFO  L87              Difference]: Start difference. First operand  has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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) Second operand  has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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)
[2022-01-11 03:16:55,305 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 03:16:55,305 INFO  L93              Difference]: Finished difference Result 43 states and 62 transitions.
[2022-01-11 03:16:55,306 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-11 03:16:55,307 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10
[2022-01-11 03:16:55,307 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 03:16:55,312 INFO  L225             Difference]: With dead ends: 43
[2022-01-11 03:16:55,313 INFO  L226             Difference]: Without dead ends: 19
[2022-01-11 03:16:55,314 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-11 03:16:55,317 INFO  L933         BasicCegarLoop]: 27 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, 27 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
[2022-01-11 03:16:55,319 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-11 03:16:55,330 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2022-01-11 03:16:55,344 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2022-01-11 03:16:55,345 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 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)
[2022-01-11 03:16:55,346 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions.
[2022-01-11 03:16:55,347 INFO  L78                 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 10
[2022-01-11 03:16:55,347 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 03:16:55,347 INFO  L470      AbstractCegarLoop]: Abstraction has 19 states and 23 transitions.
[2022-01-11 03:16:55,347 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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)
[2022-01-11 03:16:55,348 INFO  L276                IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions.
[2022-01-11 03:16:55,349 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2022-01-11 03:16:55,349 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 03:16:55,349 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 03:16:55,349 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-11 03:16:55,350 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 03:16:55,352 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 03:16:55,352 INFO  L85        PathProgramCache]: Analyzing trace with hash -989714513, now seen corresponding path program 1 times
[2022-01-11 03:16:55,352 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 03:16:55,353 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240719308]
[2022-01-11 03:16:55,353 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:16:55,353 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 03:16:55,393 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 03:16:55,393 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1998715332]
[2022-01-11 03:16:55,393 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:16:55,393 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 03:16:55,395 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 03:16:55,402 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-11 03:16:55,403 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-01-11 03:16:55,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 03:16:55,471 INFO  L263         TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core
[2022-01-11 03:16:55,476 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 03:16:55,685 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 03:16:55,685 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-11 03:16:55,685 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 03:16:55,685 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240719308]
[2022-01-11 03:16:55,685 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-11 03:16:55,685 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998715332]
[2022-01-11 03:16:55,686 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998715332] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 03:16:55,686 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 03:16:55,686 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-11 03:16:55,686 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927143524]
[2022-01-11 03:16:55,687 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 03:16:55,687 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-11 03:16:55,687 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 03:16:55,687 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-11 03:16:55,688 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-01-11 03:16:55,688 INFO  L87              Difference]: Start difference. First operand 19 states and 23 transitions. Second operand  has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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)
[2022-01-11 03:16:57,873 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2022-01-11 03:16:57,874 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 03:16:57,874 INFO  L93              Difference]: Finished difference Result 38 states and 48 transitions.
[2022-01-11 03:16:57,879 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-01-11 03:16:57,880 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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 10
[2022-01-11 03:16:57,880 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 03:16:57,880 INFO  L225             Difference]: With dead ends: 38
[2022-01-11 03:16:57,880 INFO  L226             Difference]: Without dead ends: 29
[2022-01-11 03:16:57,881 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2022-01-11 03:16:57,882 INFO  L933         BasicCegarLoop]: 9 mSDtfsCounter, 55 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2022-01-11 03:16:57,882 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 19 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time]
[2022-01-11 03:16:57,883 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2022-01-11 03:16:57,886 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21.
[2022-01-11 03:16:57,887 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 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)
[2022-01-11 03:16:57,888 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions.
[2022-01-11 03:16:57,888 INFO  L78                 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 10
[2022-01-11 03:16:57,889 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 03:16:57,889 INFO  L470      AbstractCegarLoop]: Abstraction has 21 states and 25 transitions.
[2022-01-11 03:16:57,889 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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)
[2022-01-11 03:16:57,890 INFO  L276                IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions.
[2022-01-11 03:16:57,890 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-01-11 03:16:57,890 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 03:16:57,890 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 03:16:57,917 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-01-11 03:16:58,090 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 03:16:58,091 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 03:16:58,091 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 03:16:58,091 INFO  L85        PathProgramCache]: Analyzing trace with hash -1743120142, now seen corresponding path program 1 times
[2022-01-11 03:16:58,092 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 03:16:58,092 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755067729]
[2022-01-11 03:16:58,092 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:16:58,092 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 03:16:58,110 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 03:16:58,111 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [561226493]
[2022-01-11 03:16:58,111 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:16:58,111 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 03:16:58,111 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 03:16:58,112 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-11 03:16:58,113 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-01-11 03:16:58,230 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 03:16:58,231 INFO  L263         TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 9 conjunts are in the unsatisfiable core
[2022-01-11 03:16:58,233 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 03:16:58,416 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-01-11 03:16:58,416 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-11 03:16:58,416 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 03:16:58,417 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755067729]
[2022-01-11 03:16:58,417 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-11 03:16:58,417 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561226493]
[2022-01-11 03:16:58,417 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [561226493] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 03:16:58,417 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 03:16:58,417 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-11 03:16:58,417 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143795325]
[2022-01-11 03:16:58,417 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 03:16:58,418 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-11 03:16:58,418 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 03:16:58,418 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-11 03:16:58,418 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-01-11 03:16:58,418 INFO  L87              Difference]: Start difference. First operand 21 states and 25 transitions. Second operand  has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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)
[2022-01-11 03:16:58,575 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 03:16:58,575 INFO  L93              Difference]: Finished difference Result 43 states and 54 transitions.
[2022-01-11 03:16:58,576 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-01-11 03:16:58,576 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 16
[2022-01-11 03:16:58,576 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 03:16:58,576 INFO  L225             Difference]: With dead ends: 43
[2022-01-11 03:16:58,576 INFO  L226             Difference]: Without dead ends: 27
[2022-01-11 03:16:58,577 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2022-01-11 03:16:58,577 INFO  L933         BasicCegarLoop]: 9 mSDtfsCounter, 50 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-11 03:16:58,578 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 16 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-11 03:16:58,578 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2022-01-11 03:16:58,581 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23.
[2022-01-11 03:16:58,581 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 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)
[2022-01-11 03:16:58,582 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions.
[2022-01-11 03:16:58,582 INFO  L78                 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16
[2022-01-11 03:16:58,582 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 03:16:58,582 INFO  L470      AbstractCegarLoop]: Abstraction has 23 states and 27 transitions.
[2022-01-11 03:16:58,582 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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)
[2022-01-11 03:16:58,582 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions.
[2022-01-11 03:16:58,583 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2022-01-11 03:16:58,583 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 03:16:58,583 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 03:16:58,594 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-01-11 03:16:58,787 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2022-01-11 03:16:58,788 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 03:16:58,788 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 03:16:58,788 INFO  L85        PathProgramCache]: Analyzing trace with hash 1036381485, now seen corresponding path program 1 times
[2022-01-11 03:16:58,788 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 03:16:58,788 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116552125]
[2022-01-11 03:16:58,788 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:16:58,789 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 03:16:58,825 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 03:16:58,826 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2049249037]
[2022-01-11 03:16:58,826 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:16:58,826 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 03:16:58,826 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 03:16:58,829 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-11 03:16:58,831 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-01-11 03:16:59,037 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 03:16:59,039 INFO  L263         TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 15 conjunts are in the unsatisfiable core
[2022-01-11 03:16:59,042 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 03:16:59,235 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-01-11 03:16:59,235 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-11 03:16:59,235 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 03:16:59,235 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116552125]
[2022-01-11 03:16:59,235 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-11 03:16:59,235 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049249037]
[2022-01-11 03:16:59,235 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049249037] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 03:16:59,235 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 03:16:59,236 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-11 03:16:59,236 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788488029]
[2022-01-11 03:16:59,236 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 03:16:59,236 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-11 03:16:59,237 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 03:16:59,238 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-11 03:16:59,238 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-01-11 03:16:59,238 INFO  L87              Difference]: Start difference. First operand 23 states and 27 transitions. Second operand  has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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)
[2022-01-11 03:16:59,434 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 03:16:59,434 INFO  L93              Difference]: Finished difference Result 75 states and 91 transitions.
[2022-01-11 03:16:59,435 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-01-11 03:16:59,435 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 22
[2022-01-11 03:16:59,435 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 03:16:59,436 INFO  L225             Difference]: With dead ends: 75
[2022-01-11 03:16:59,436 INFO  L226             Difference]: Without dead ends: 57
[2022-01-11 03:16:59,436 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2022-01-11 03:16:59,437 INFO  L933         BasicCegarLoop]: 14 mSDtfsCounter, 45 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-11 03:16:59,437 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 40 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-11 03:16:59,438 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2022-01-11 03:16:59,441 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 25.
[2022-01-11 03:16:59,441 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 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)
[2022-01-11 03:16:59,442 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions.
[2022-01-11 03:16:59,442 INFO  L78                 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 22
[2022-01-11 03:16:59,442 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 03:16:59,442 INFO  L470      AbstractCegarLoop]: Abstraction has 25 states and 29 transitions.
[2022-01-11 03:16:59,442 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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)
[2022-01-11 03:16:59,442 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions.
[2022-01-11 03:16:59,443 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2022-01-11 03:16:59,443 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 03:16:59,443 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 03:16:59,449 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-01-11 03:16:59,647 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 03:16:59,647 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 03:16:59,648 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 03:16:59,648 INFO  L85        PathProgramCache]: Analyzing trace with hash 525847308, now seen corresponding path program 1 times
[2022-01-11 03:16:59,648 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 03:16:59,648 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347817524]
[2022-01-11 03:16:59,648 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:16:59,648 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 03:16:59,666 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 03:16:59,667 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [216217940]
[2022-01-11 03:16:59,667 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:16:59,667 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 03:16:59,667 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 03:16:59,692 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-11 03:16:59,709 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-01-11 03:17:00,002 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 03:17:00,005 INFO  L263         TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 46 conjunts are in the unsatisfiable core
[2022-01-11 03:17:00,010 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 03:17:00,327 INFO  L387             Elim1Store]: Elim1 did not use preprocessing 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 83 treesize of output 79
[2022-01-11 03:17:27,007 INFO  L387             Elim1Store]: Elim1 did not use preprocessing 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 174 treesize of output 54
[2022-01-11 03:17:35,235 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 03:17:35,235 INFO  L328         TraceCheckSpWp]: Computing backward predicates...