/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-multidimensional/init-3-u.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-11 03:13:14,014 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-11 03:13:14,015 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-11 03:13:14,035 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-11 03:13:14,035 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-11 03:13:14,036 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-11 03:13:14,037 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-11 03:13:14,038 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-11 03:13:14,039 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-11 03:13:14,039 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-01-11 03:13:14,040 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-01-11 03:13:14,040 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-11 03:13:14,041 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-11 03:13:14,041 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-11 03:13:14,042 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-11 03:13:14,043 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-11 03:13:14,043 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-11 03:13:14,071 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-11 03:13:14,074 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-11 03:13:14,075 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-11 03:13:14,076 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-11 03:13:14,078 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-11 03:13:14,078 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-11 03:13:14,079 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-11 03:13:14,080 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-11 03:13:14,080 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-11 03:13:14,081 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-11 03:13:14,081 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-11 03:13:14,081 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-11 03:13:14,082 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-11 03:13:14,082 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-11 03:13:14,082 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-11 03:13:14,083 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-11 03:13:14,083 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-11 03:13:14,084 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-11 03:13:14,084 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-11 03:13:14,084 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-11 03:13:14,085 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-11 03:13:14,085 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-11 03:13:14,085 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-11 03:13:14,086 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-11 03:13:14,086 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 03:13:14,103 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-11 03:13:14,104 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-11 03:13:14,104 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-11 03:13:14,104 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-11 03:13:14,105 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-11 03:13:14,105 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-11 03:13:14,105 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-11 03:13:14,105 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-11 03:13:14,105 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-11 03:13:14,105 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-11 03:13:14,105 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-11 03:13:14,105 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-11 03:13:14,106 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-11 03:13:14,106 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-11 03:13:14,106 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-11 03:13:14,106 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-11 03:13:14,106 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-11 03:13:14,106 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-11 03:13:14,106 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-11 03:13:14,106 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-11 03:13:14,107 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-11 03:13:14,107 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-11 03:13:14,107 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-11 03:13:14,107 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-11 03:13:14,107 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-11 03:13:14,107 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-11 03:13:14,107 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-11 03:13:14,108 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-11 03:13:14,108 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-11 03:13:14,108 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-11 03:13:14,108 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-11 03:13:14,108 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-11 03:13:14,108 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-11 03:13:14,109 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-11 03:13:14,272 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-11 03:13:14,288 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-11 03:13:14,289 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-11 03:13:14,290 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-11 03:13:14,291 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-11 03:13:14,291 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/init-3-u.c
[2022-01-11 03:13:14,364 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0055e760/0bf8d20039034e628a5aad1bc56cbd98/FLAG1a4b9d36b
[2022-01-11 03:13:14,639 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-11 03:13:14,639 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/init-3-u.c
[2022-01-11 03:13:14,643 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0055e760/0bf8d20039034e628a5aad1bc56cbd98/FLAG1a4b9d36b
[2022-01-11 03:13:15,089 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0055e760/0bf8d20039034e628a5aad1bc56cbd98
[2022-01-11 03:13:15,090 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-11 03:13:15,091 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-11 03:13:15,094 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-11 03:13:15,094 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-11 03:13:15,096 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-11 03:13:15,097 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:13:15" (1/1) ...
[2022-01-11 03:13:15,098 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67b6f4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:13:15, skipping insertion in model container
[2022-01-11 03:13:15,098 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:13:15" (1/1) ...
[2022-01-11 03:13:15,102 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-11 03:13:15,113 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-11 03:13:15,220 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-multidimensional/init-3-u.c[320,333]
[2022-01-11 03:13:15,231 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 03:13:15,252 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-11 03:13:15,262 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-multidimensional/init-3-u.c[320,333]
[2022-01-11 03:13:15,268 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 03:13:15,276 INFO  L208         MainTranslator]: Completed translation
[2022-01-11 03:13:15,276 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:13:15 WrapperNode
[2022-01-11 03:13:15,276 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-11 03:13:15,277 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-11 03:13:15,277 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-11 03:13:15,277 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-11 03:13:15,282 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:13:15" (1/1) ...
[2022-01-11 03:13:15,294 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:13:15" (1/1) ...
[2022-01-11 03:13:15,305 INFO  L137                Inliner]: procedures = 16, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75
[2022-01-11 03:13:15,305 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-11 03:13:15,305 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-11 03:13:15,305 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-11 03:13:15,306 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-11 03:13:15,310 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:13:15" (1/1) ...
[2022-01-11 03:13:15,310 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:13:15" (1/1) ...
[2022-01-11 03:13:15,313 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:13:15" (1/1) ...
[2022-01-11 03:13:15,313 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:13:15" (1/1) ...
[2022-01-11 03:13:15,319 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:13:15" (1/1) ...
[2022-01-11 03:13:15,322 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:13:15" (1/1) ...
[2022-01-11 03:13:15,323 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:13:15" (1/1) ...
[2022-01-11 03:13:15,324 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-11 03:13:15,324 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-11 03:13:15,325 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-11 03:13:15,325 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-11 03:13:15,325 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:13:15" (1/1) ...
[2022-01-11 03:13:15,337 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-11 03:13:15,344 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 03:13:15,351 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 03:13:15,363 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 03:13:15,383 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-11 03:13:15,383 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-11 03:13:15,383 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-01-11 03:13:15,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2022-01-11 03:13:15,383 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-11 03:13:15,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-11 03:13:15,383 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-01-11 03:13:15,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2022-01-11 03:13:15,426 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-11 03:13:15,427 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-11 03:13:16,030 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-11 03:13:16,034 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-11 03:13:16,034 INFO  L299             CfgBuilder]: Removed 6 assume(true) statements.
[2022-01-11 03:13:16,035 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:13:16 BoogieIcfgContainer
[2022-01-11 03:13:16,035 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-11 03:13:16,036 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-11 03:13:16,036 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-11 03:13:16,037 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-11 03:13:16,039 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:13:16" (1/1) ...
[2022-01-11 03:13:16,116 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:13:16 BasicIcfg
[2022-01-11 03:13:16,117 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-11 03:13:16,118 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-11 03:13:16,118 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-11 03:13:16,120 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-11 03:13:16,120 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 03:13:15" (1/4) ...
[2022-01-11 03:13:16,120 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea964c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:13:16, skipping insertion in model container
[2022-01-11 03:13:16,120 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:13:15" (2/4) ...
[2022-01-11 03:13:16,121 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea964c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:13:16, skipping insertion in model container
[2022-01-11 03:13:16,121 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:13:16" (3/4) ...
[2022-01-11 03:13:16,121 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea964c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 03:13:16, skipping insertion in model container
[2022-01-11 03:13:16,121 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:13:16" (4/4) ...
[2022-01-11 03:13:16,122 INFO  L111   eAbstractionObserver]: Analyzing ICFG init-3-u.cTransformedIcfg
[2022-01-11 03:13:16,125 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-11 03:13:16,125 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-11 03:13:16,154 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-11 03:13:16,159 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 03:13:16,159 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-11 03:13:16,169 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 21 states, 19 states have (on average 1.736842105263158) internal successors, (33), 20 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 03:13:16,172 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2022-01-11 03:13:16,172 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 03:13:16,172 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 03:13:16,173 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 03:13:16,179 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 03:13:16,180 INFO  L85        PathProgramCache]: Analyzing trace with hash -1442060435, now seen corresponding path program 1 times
[2022-01-11 03:13:16,185 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 03:13:16,187 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066953495]
[2022-01-11 03:13:16,187 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:13:16,187 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 03:13:16,283 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 03:13:16,285 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2053158064]
[2022-01-11 03:13:16,285 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:13:16,285 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 03:13:16,286 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 03:13:16,287 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 03:13:16,341 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 03:13:16,408 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 03:13:16,410 INFO  L263         TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-01-11 03:13:16,414 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 03:13:16,450 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 03:13:16,450 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-11 03:13:16,450 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 03:13:16,451 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066953495]
[2022-01-11 03:13:16,451 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-11 03:13:16,451 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053158064]
[2022-01-11 03:13:16,452 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053158064] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 03:13:16,452 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 03:13:16,452 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-11 03:13:16,454 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126113105]
[2022-01-11 03:13:16,455 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 03:13:16,458 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-01-11 03:13:16,458 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 03:13:16,477 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-01-11 03:13:16,478 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-11 03:13:16,480 INFO  L87              Difference]: Start difference. First operand  has 21 states, 19 states have (on average 1.736842105263158) internal successors, (33), 20 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 03:13:16,489 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 03:13:16,489 INFO  L93              Difference]: Finished difference Result 40 states and 64 transitions.
[2022-01-11 03:13:16,490 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-11 03:13:16,491 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9
[2022-01-11 03:13:16,491 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 03:13:16,496 INFO  L225             Difference]: With dead ends: 40
[2022-01-11 03:13:16,496 INFO  L226             Difference]: Without dead ends: 17
[2022-01-11 03:13:16,498 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 03:13:16,500 INFO  L933         BasicCegarLoop]: 26 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, 26 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 03:13:16,501 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-11 03:13:16,511 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2022-01-11 03:13:16,519 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2022-01-11 03:13:16,520 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 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 03:13:16,520 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions.
[2022-01-11 03:13:16,521 INFO  L78                 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 9
[2022-01-11 03:13:16,521 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 03:13:16,521 INFO  L470      AbstractCegarLoop]: Abstraction has 17 states and 22 transitions.
[2022-01-11 03:13:16,522 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 03:13:16,522 INFO  L276                IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions.
[2022-01-11 03:13:16,522 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2022-01-11 03:13:16,522 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 03:13:16,522 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 03:13:16,543 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 03:13:16,744 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2022-01-11 03:13:16,744 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 03:13:16,745 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 03:13:16,745 INFO  L85        PathProgramCache]: Analyzing trace with hash -554556754, now seen corresponding path program 1 times
[2022-01-11 03:13:16,745 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 03:13:16,745 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941337012]
[2022-01-11 03:13:16,745 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:13:16,745 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 03:13:16,762 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 03:13:16,762 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2074023873]
[2022-01-11 03:13:16,762 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:13:16,762 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 03:13:16,763 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 03:13:16,764 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 03:13:16,765 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 03:13:16,820 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 03:13:16,821 INFO  L263         TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-01-11 03:13:16,822 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 03:13:16,901 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 03:13:16,902 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-11 03:13:16,902 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 03:13:16,902 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941337012]
[2022-01-11 03:13:16,902 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-11 03:13:16,902 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074023873]
[2022-01-11 03:13:16,902 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074023873] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 03:13:16,903 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 03:13:16,903 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-11 03:13:16,903 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347431700]
[2022-01-11 03:13:16,903 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 03:13:16,903 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-11 03:13:16,904 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 03:13:16,904 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-11 03:13:16,904 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-01-11 03:13:16,904 INFO  L87              Difference]: Start difference. First operand 17 states and 22 transitions. Second operand  has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 03:13:17,117 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 03:13:17,117 INFO  L93              Difference]: Finished difference Result 42 states and 54 transitions.
[2022-01-11 03:13:17,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-01-11 03:13:17,119 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 9
[2022-01-11 03:13:17,119 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 03:13:17,119 INFO  L225             Difference]: With dead ends: 42
[2022-01-11 03:13:17,119 INFO  L226             Difference]: Without dead ends: 31
[2022-01-11 03:13:17,120 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-01-11 03:13:17,120 INFO  L933         BasicCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-01-11 03:13:17,121 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 43 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-01-11 03:13:17,121 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2022-01-11 03:13:17,124 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 18.
[2022-01-11 03:13:17,124 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 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 03:13:17,125 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions.
[2022-01-11 03:13:17,125 INFO  L78                 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 9
[2022-01-11 03:13:17,126 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 03:13:17,126 INFO  L470      AbstractCegarLoop]: Abstraction has 18 states and 23 transitions.
[2022-01-11 03:13:17,126 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 03:13:17,126 INFO  L276                IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions.
[2022-01-11 03:13:17,127 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-01-11 03:13:17,127 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 03:13:17,127 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 03:13:17,159 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 03:13:17,339 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,SelfDestructingSolverStorable1
[2022-01-11 03:13:17,340 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 03:13:17,340 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 03:13:17,340 INFO  L85        PathProgramCache]: Analyzing trace with hash -2033331126, now seen corresponding path program 1 times
[2022-01-11 03:13:17,340 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 03:13:17,340 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875824093]
[2022-01-11 03:13:17,340 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:13:17,341 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 03:13:17,359 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 03:13:17,360 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [576123616]
[2022-01-11 03:13:17,360 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:13:17,360 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 03:13:17,360 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 03:13:17,366 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 03:13:17,367 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 03:13:17,426 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 03:13:17,428 INFO  L263         TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-01-11 03:13:17,429 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 03:13:17,538 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 03:13:17,538 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-11 03:13:17,539 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 03:13:17,539 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875824093]
[2022-01-11 03:13:17,539 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-11 03:13:17,539 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576123616]
[2022-01-11 03:13:17,539 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [576123616] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 03:13:17,539 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 03:13:17,539 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-01-11 03:13:17,539 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677725134]
[2022-01-11 03:13:17,539 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 03:13:17,540 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-01-11 03:13:17,540 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 03:13:17,540 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-01-11 03:13:17,540 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-01-11 03:13:17,540 INFO  L87              Difference]: Start difference. First operand 18 states and 23 transitions. Second operand  has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 03:13:17,906 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 03:13:17,906 INFO  L93              Difference]: Finished difference Result 56 states and 74 transitions.
[2022-01-11 03:13:17,907 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-01-11 03:13:17,908 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12
[2022-01-11 03:13:17,908 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 03:13:17,908 INFO  L225             Difference]: With dead ends: 56
[2022-01-11 03:13:17,908 INFO  L226             Difference]: Without dead ends: 41
[2022-01-11 03:13:17,909 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-01-11 03:13:17,909 INFO  L933         BasicCegarLoop]: 10 mSDtfsCounter, 35 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-01-11 03:13:17,912 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 28 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-01-11 03:13:17,912 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2022-01-11 03:13:17,914 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 21.
[2022-01-11 03:13:17,914 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 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 03:13:17,915 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions.
[2022-01-11 03:13:17,915 INFO  L78                 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 12
[2022-01-11 03:13:17,915 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 03:13:17,915 INFO  L470      AbstractCegarLoop]: Abstraction has 21 states and 26 transitions.
[2022-01-11 03:13:17,915 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 03:13:17,915 INFO  L276                IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions.
[2022-01-11 03:13:17,916 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2022-01-11 03:13:17,916 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 03:13:17,916 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 03:13:17,934 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 03:13:18,127 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 03:13:18,127 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 03:13:18,128 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 03:13:18,128 INFO  L85        PathProgramCache]: Analyzing trace with hash -740193793, now seen corresponding path program 1 times
[2022-01-11 03:13:18,128 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 03:13:18,128 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762146389]
[2022-01-11 03:13:18,128 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:13:18,128 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 03:13:18,141 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 03:13:18,141 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [627677140]
[2022-01-11 03:13:18,141 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:13:18,141 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 03:13:18,141 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 03:13:18,142 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 03:13:18,143 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 03:13:18,201 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 03:13:18,202 INFO  L263         TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-01-11 03:13:18,203 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 03:13:18,322 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 03:13:18,322 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-11 03:13:18,322 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 03:13:18,322 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762146389]
[2022-01-11 03:13:18,322 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-11 03:13:18,323 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627677140]
[2022-01-11 03:13:18,323 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [627677140] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 03:13:18,323 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 03:13:18,323 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-11 03:13:18,323 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492671466]
[2022-01-11 03:13:18,323 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 03:13:18,323 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-11 03:13:18,323 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 03:13:18,324 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-11 03:13:18,324 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-01-11 03:13:18,324 INFO  L87              Difference]: Start difference. First operand 21 states and 26 transitions. Second operand  has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 03:13:18,555 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 03:13:18,556 INFO  L93              Difference]: Finished difference Result 69 states and 90 transitions.
[2022-01-11 03:13:18,556 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-11 03:13:18,556 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15
[2022-01-11 03:13:18,556 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 03:13:18,557 INFO  L225             Difference]: With dead ends: 69
[2022-01-11 03:13:18,557 INFO  L226             Difference]: Without dead ends: 52
[2022-01-11 03:13:18,557 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2022-01-11 03:13:18,558 INFO  L933         BasicCegarLoop]: 11 mSDtfsCounter, 77 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-01-11 03:13:18,558 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 23 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-01-11 03:13:18,559 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2022-01-11 03:13:18,562 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 23.
[2022-01-11 03:13:18,562 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 23 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 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 03:13:18,562 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions.
[2022-01-11 03:13:18,562 INFO  L78                 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 15
[2022-01-11 03:13:18,562 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 03:13:18,563 INFO  L470      AbstractCegarLoop]: Abstraction has 23 states and 28 transitions.
[2022-01-11 03:13:18,563 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 03:13:18,563 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions.
[2022-01-11 03:13:18,563 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-01-11 03:13:18,563 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 03:13:18,563 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 03:13:18,583 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-01-11 03:13:18,776 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 03:13:18,776 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 03:13:18,777 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 03:13:18,777 INFO  L85        PathProgramCache]: Analyzing trace with hash -411613539, now seen corresponding path program 1 times
[2022-01-11 03:13:18,777 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 03:13:18,777 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614275235]
[2022-01-11 03:13:18,777 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:13:18,777 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 03:13:18,791 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 03:13:18,792 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1845989231]
[2022-01-11 03:13:18,792 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:13:18,792 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 03:13:18,792 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 03:13:18,793 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-11 03:13:18,794 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-01-11 03:13:18,907 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 03:13:18,909 INFO  L263         TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 18 conjunts are in the unsatisfiable core
[2022-01-11 03:13:18,910 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 03:13:19,134 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 03:13:19,135 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-01-11 03:13:19,304 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 03:13:19,305 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 03:13:19,305 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614275235]
[2022-01-11 03:13:19,305 WARN  L312   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-11 03:13:19,305 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845989231]
[2022-01-11 03:13:19,305 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845989231] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-11 03:13:19,305 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-01-11 03:13:19,305 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10
[2022-01-11 03:13:19,305 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841162653]
[2022-01-11 03:13:19,305 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-01-11 03:13:19,306 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2022-01-11 03:13:19,306 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 03:13:19,306 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2022-01-11 03:13:19,306 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90
[2022-01-11 03:13:19,306 INFO  L87              Difference]: Start difference. First operand 23 states and 28 transitions. Second operand  has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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 03:13:20,033 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 03:13:20,033 INFO  L93              Difference]: Finished difference Result 67 states and 89 transitions.
[2022-01-11 03:13:20,033 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2022-01-11 03:13:20,034 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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 03:13:20,034 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 03:13:20,034 INFO  L225             Difference]: With dead ends: 67
[2022-01-11 03:13:20,034 INFO  L226             Difference]: Without dead ends: 48
[2022-01-11 03:13:20,035 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=142, Unknown=0, NotChecked=0, Total=240
[2022-01-11 03:13:20,035 INFO  L933         BasicCegarLoop]: 11 mSDtfsCounter, 64 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-01-11 03:13:20,035 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 34 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-01-11 03:13:20,036 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2022-01-11 03:13:20,041 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 29.
[2022-01-11 03:13:20,041 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 29 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 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 03:13:20,042 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions.
[2022-01-11 03:13:20,042 INFO  L78                 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 16
[2022-01-11 03:13:20,042 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 03:13:20,042 INFO  L470      AbstractCegarLoop]: Abstraction has 29 states and 35 transitions.
[2022-01-11 03:13:20,042 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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 03:13:20,042 INFO  L276                IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions.
[2022-01-11 03:13:20,042 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2022-01-11 03:13:20,042 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 03:13:20,042 INFO  L514         BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 03:13:20,049 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2022-01-11 03:13:20,247 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 03:13:20,247 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 03:13:20,247 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 03:13:20,247 INFO  L85        PathProgramCache]: Analyzing trace with hash -373636737, now seen corresponding path program 2 times
[2022-01-11 03:13:20,247 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 03:13:20,247 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919939286]
[2022-01-11 03:13:20,247 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:13:20,248 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 03:13:20,275 ERROR L247   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-11 03:13:20,275 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038822137]
[2022-01-11 03:13:20,275 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-01-11 03:13:20,275 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 03:13:20,275 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 03:13:20,276 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-11 03:13:20,277 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-01-11 03:13:20,421 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-01-11 03:13:20,421 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-01-11 03:13:20,423 INFO  L263         TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 12 conjunts are in the unsatisfiable core
[2022-01-11 03:13:20,424 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 03:13:25,347 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-01-11 03:13:25,348 INFO  L328         TraceCheckSpWp]: Computing backward predicates...