/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-fpi/sina2.c


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


This is Ultimate 0.2.2-dev-a10ec3b
[2022-01-11 03:27:28,041 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-01-11 03:27:28,043 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-11 03:27:28,101 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-11 03:27:28,101 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-11 03:27:28,104 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-11 03:27:28,105 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-11 03:27:28,107 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-11 03:27:28,108 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-11 03:27:28,109 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-01-11 03:27:28,109 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-01-11 03:27:28,110 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-11 03:27:28,110 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-11 03:27:28,111 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-11 03:27:28,112 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-11 03:27:28,113 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-11 03:27:28,114 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-11 03:27:28,114 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-11 03:27:28,116 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-11 03:27:28,117 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-11 03:27:28,118 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-11 03:27:28,119 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-11 03:27:28,120 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-01-11 03:27:28,121 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-11 03:27:28,123 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-11 03:27:28,123 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-11 03:27:28,124 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-11 03:27:28,124 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-11 03:27:28,125 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-11 03:27:28,125 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-11 03:27:28,126 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-11 03:27:28,126 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-11 03:27:28,127 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-11 03:27:28,127 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-11 03:27:28,128 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-11 03:27:28,128 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-11 03:27:28,129 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-11 03:27:28,129 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-11 03:27:28,129 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-11 03:27:28,130 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-11 03:27:28,130 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-01-11 03:27:28,131 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 03:27:28,154 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-11 03:27:28,155 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-11 03:27:28,155 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-11 03:27:28,155 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-11 03:27:28,156 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-11 03:27:28,156 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-11 03:27:28,156 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-11 03:27:28,157 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-11 03:27:28,157 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-11 03:27:28,157 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-11 03:27:28,157 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-11 03:27:28,157 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-11 03:27:28,157 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-11 03:27:28,157 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-01-11 03:27:28,158 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-01-11 03:27:28,158 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-01-11 03:27:28,158 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-11 03:27:28,158 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-11 03:27:28,158 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-11 03:27:28,158 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-11 03:27:28,158 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-11 03:27:28,158 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-11 03:27:28,159 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-11 03:27:28,159 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-11 03:27:28,159 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-11 03:27:28,159 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-11 03:27:28,159 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-11 03:27:28,159 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-11 03:27:28,160 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-01-11 03:27:28,160 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-11 03:27:28,160 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-01-11 03:27:28,160 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-01-11 03:27:28,161 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-11 03:27:28,161 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-11 03:27:28,373 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-11 03:27:28,389 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-11 03:27:28,391 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-11 03:27:28,392 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-01-11 03:27:28,392 INFO  L275        PluginConnector]: CDTParser initialized
[2022-01-11 03:27:28,393 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina2.c
[2022-01-11 03:27:28,451 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c095641f/ea6a5457a90d460e8dc63cedaeb6a1e1/FLAGcf39518a8
[2022-01-11 03:27:28,816 INFO  L306              CDTParser]: Found 1 translation units.
[2022-01-11 03:27:28,816 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sina2.c
[2022-01-11 03:27:28,827 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c095641f/ea6a5457a90d460e8dc63cedaeb6a1e1/FLAGcf39518a8
[2022-01-11 03:27:28,844 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c095641f/ea6a5457a90d460e8dc63cedaeb6a1e1
[2022-01-11 03:27:28,847 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-11 03:27:28,851 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-01-11 03:27:28,853 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-11 03:27:28,854 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-11 03:27:28,856 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-11 03:27:28,857 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:27:28" (1/1) ...
[2022-01-11 03:27:28,858 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b6a5956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:27:28, skipping insertion in model container
[2022-01-11 03:27:28,858 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:27:28" (1/1) ...
[2022-01-11 03:27:28,865 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-01-11 03:27:28,882 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-01-11 03:27:29,079 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-fpi/sina2.c[588,601]
[2022-01-11 03:27:29,097 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 03:27:29,108 INFO  L203         MainTranslator]: Completed pre-run
[2022-01-11 03:27:29,120 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-fpi/sina2.c[588,601]
[2022-01-11 03:27:29,127 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-01-11 03:27:29,161 INFO  L208         MainTranslator]: Completed translation
[2022-01-11 03:27:29,162 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:27:29 WrapperNode
[2022-01-11 03:27:29,162 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-11 03:27:29,163 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-11 03:27:29,163 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-11 03:27:29,163 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-11 03:27:29,177 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:27:29" (1/1) ...
[2022-01-11 03:27:29,195 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:27:29" (1/1) ...
[2022-01-11 03:27:29,223 INFO  L137                Inliner]: procedures = 19, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83
[2022-01-11 03:27:29,223 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-11 03:27:29,224 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-11 03:27:29,224 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-11 03:27:29,224 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-11 03:27:29,231 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:27:29" (1/1) ...
[2022-01-11 03:27:29,231 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:27:29" (1/1) ...
[2022-01-11 03:27:29,239 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:27:29" (1/1) ...
[2022-01-11 03:27:29,240 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:27:29" (1/1) ...
[2022-01-11 03:27:29,256 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:27:29" (1/1) ...
[2022-01-11 03:27:29,260 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:27:29" (1/1) ...
[2022-01-11 03:27:29,261 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:27:29" (1/1) ...
[2022-01-11 03:27:29,263 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-11 03:27:29,264 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-11 03:27:29,264 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-11 03:27:29,264 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-11 03:27:29,267 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:27:29" (1/1) ...
[2022-01-11 03:27:29,273 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-11 03:27:29,284 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 03:27:29,305 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 03:27:29,320 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 03:27:29,343 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-11 03:27:29,343 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-01-11 03:27:29,343 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-01-11 03:27:29,343 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE8
[2022-01-11 03:27:29,343 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2022-01-11 03:27:29,344 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-11 03:27:29,344 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-11 03:27:29,344 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE8
[2022-01-11 03:27:29,344 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-01-11 03:27:29,397 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-11 03:27:29,398 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-11 03:27:29,557 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-11 03:27:29,562 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-11 03:27:29,562 INFO  L299             CfgBuilder]: Removed 4 assume(true) statements.
[2022-01-11 03:27:29,564 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:27:29 BoogieIcfgContainer
[2022-01-11 03:27:29,564 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-11 03:27:29,565 INFO  L113        PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-11 03:27:29,565 INFO  L271        PluginConnector]: Initializing IcfgTransformer...
[2022-01-11 03:27:29,566 INFO  L275        PluginConnector]: IcfgTransformer initialized
[2022-01-11 03:27:29,568 INFO  L185        PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:27:29" (1/1) ...
[2022-01-11 03:27:29,735 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:27:29 BasicIcfg
[2022-01-11 03:27:29,735 INFO  L132        PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-11 03:27:29,737 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-11 03:27:29,737 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-11 03:27:29,740 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-11 03:27:29,740 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 03:27:28" (1/4) ...
[2022-01-11 03:27:29,740 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e269e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:27:29, skipping insertion in model container
[2022-01-11 03:27:29,740 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:27:29" (2/4) ...
[2022-01-11 03:27:29,741 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e269e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:27:29, skipping insertion in model container
[2022-01-11 03:27:29,741 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:27:29" (3/4) ...
[2022-01-11 03:27:29,741 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e269e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 03:27:29, skipping insertion in model container
[2022-01-11 03:27:29,741 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:27:29" (4/4) ...
[2022-01-11 03:27:29,742 INFO  L111   eAbstractionObserver]: Analyzing ICFG sina2.cTransformedIcfg
[2022-01-11 03:27:29,753 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-11 03:27:29,753 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-11 03:27:29,803 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-11 03:27:29,812 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 03:27:29,813 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-11 03:27:29,825 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 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 03:27:29,829 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-01-11 03:27:29,829 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 03:27:29,830 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 03:27:29,831 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 03:27:29,835 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 03:27:29,835 INFO  L85        PathProgramCache]: Analyzing trace with hash -1760602481, now seen corresponding path program 1 times
[2022-01-11 03:27:29,843 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 03:27:29,844 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195467199]
[2022-01-11 03:27:29,844 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:27:29,844 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 03:27:29,995 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 03:27:30,065 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 03:27:30,066 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 03:27:30,066 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195467199]
[2022-01-11 03:27:30,067 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195467199] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 03:27:30,067 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 03:27:30,067 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-01-11 03:27:30,069 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080738606]
[2022-01-11 03:27:30,070 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 03:27:30,074 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-01-11 03:27:30,074 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 03:27:30,102 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-01-11 03:27:30,103 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-01-11 03:27:30,105 INFO  L87              Difference]: Start difference. First operand  has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 03:27:30,119 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 03:27:30,120 INFO  L93              Difference]: Finished difference Result 44 states and 62 transitions.
[2022-01-11 03:27:30,121 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-11 03:27:30,123 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14
[2022-01-11 03:27:30,123 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 03:27:30,129 INFO  L225             Difference]: With dead ends: 44
[2022-01-11 03:27:30,129 INFO  L226             Difference]: Without dead ends: 20
[2022-01-11 03:27:30,132 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 03:27:30,136 INFO  L933         BasicCegarLoop]: 28 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, 28 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 03:27:30,137 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-11 03:27:30,150 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2022-01-11 03:27:30,164 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2022-01-11 03:27:30,166 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 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 03:27:30,167 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions.
[2022-01-11 03:27:30,169 INFO  L78                 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 14
[2022-01-11 03:27:30,169 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 03:27:30,170 INFO  L470      AbstractCegarLoop]: Abstraction has 20 states and 23 transitions.
[2022-01-11 03:27:30,170 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 03:27:30,171 INFO  L276                IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions.
[2022-01-11 03:27:30,171 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-01-11 03:27:30,172 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 03:27:30,172 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-11 03:27:30,172 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-11 03:27:30,172 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 03:27:30,174 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 03:27:30,174 INFO  L85        PathProgramCache]: Analyzing trace with hash -181613805, now seen corresponding path program 1 times
[2022-01-11 03:27:30,175 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 03:27:30,175 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566918647]
[2022-01-11 03:27:30,175 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:27:30,176 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 03:27:30,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 03:27:30,409 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 03:27:30,409 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 03:27:30,409 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566918647]
[2022-01-11 03:27:30,409 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566918647] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-11 03:27:30,410 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-11 03:27:30,410 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-01-11 03:27:30,410 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210706416]
[2022-01-11 03:27:30,410 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-11 03:27:30,411 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-01-11 03:27:30,411 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-11 03:27:30,412 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-01-11 03:27:30,412 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-01-11 03:27:30,412 INFO  L87              Difference]: Start difference. First operand 20 states and 23 transitions. Second operand  has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 03:27:32,507 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2022-01-11 03:27:32,606 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-11 03:27:32,606 INFO  L93              Difference]: Finished difference Result 38 states and 46 transitions.
[2022-01-11 03:27:32,606 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-01-11 03:27:32,607 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14
[2022-01-11 03:27:32,607 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-11 03:27:32,607 INFO  L225             Difference]: With dead ends: 38
[2022-01-11 03:27:32,608 INFO  L226             Difference]: Without dead ends: 25
[2022-01-11 03:27:32,608 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-01-11 03:27:32,609 INFO  L933         BasicCegarLoop]: 15 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2022-01-11 03:27:32,610 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 27 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time]
[2022-01-11 03:27:32,611 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2022-01-11 03:27:32,615 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23.
[2022-01-11 03:27:32,615 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 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 03:27:32,616 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions.
[2022-01-11 03:27:32,616 INFO  L78                 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 14
[2022-01-11 03:27:32,616 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-01-11 03:27:32,616 INFO  L470      AbstractCegarLoop]: Abstraction has 23 states and 26 transitions.
[2022-01-11 03:27:32,617 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 03:27:32,617 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions.
[2022-01-11 03:27:32,617 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2022-01-11 03:27:32,617 INFO  L506         BasicCegarLoop]: Found error trace
[2022-01-11 03:27:32,618 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]
[2022-01-11 03:27:32,618 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-11 03:27:32,618 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-11 03:27:32,618 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-11 03:27:32,619 INFO  L85        PathProgramCache]: Analyzing trace with hash 889479949, now seen corresponding path program 1 times
[2022-01-11 03:27:32,619 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-11 03:27:32,619 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587812830]
[2022-01-11 03:27:32,619 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:27:32,619 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-11 03:27:32,980 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 03:27:41,552 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 03:27:41,553 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-11 03:27:41,553 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587812830]
[2022-01-11 03:27:41,553 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587812830] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-11 03:27:41,553 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348330255]
[2022-01-11 03:27:41,554 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-11 03:27:41,554 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-11 03:27:41,554 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-11 03:27:41,555 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 03:27:41,556 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 03:27:41,923 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-11 03:27:41,927 INFO  L263         TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 55 conjunts are in the unsatisfiable core
[2022-01-11 03:27:41,936 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-01-11 03:27:42,350 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-01-11 03:27:42,351 INFO  L173   IndexEqualityManager]: detected equality via solver
[2022-01-11 03:27:42,358 INFO  L387             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 27
[2022-01-11 03:27:42,567 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-01-11 03:27:42,568 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-01-11 03:27:42,571 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-01-11 03:27:42,572 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-01-11 03:27:42,575 INFO  L387             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 88
[2022-01-11 03:27:43,533 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-01-11 03:27:43,536 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-01-11 03:27:43,537 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-01-11 03:27:43,539 INFO  L387             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 95
[2022-01-11 03:28:16,042 WARN  L228               SmtUtils]: Spent 6.30s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-01-11 03:28:16,085 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-01-11 03:28:16,087 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-01-11 03:28:16,091 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-01-11 03:28:16,095 INFO  L173   IndexEqualityManager]: detected equality via solver
[2022-01-11 03:28:16,097 INFO  L173   IndexEqualityManager]: detected equality via solver
[2022-01-11 03:28:16,100 INFO  L387             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 157
[2022-01-11 03:28:26,868 WARN  L228               SmtUtils]: Spent 6.30s on a formula simplification that was a NOOP. DAG size: 75 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-01-11 03:28:33,810 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-01-11 03:28:33,815 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-01-11 03:28:33,820 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-01-11 03:28:33,823 INFO  L173   IndexEqualityManager]: detected equality via solver
[2022-01-11 03:28:33,826 INFO  L173   IndexEqualityManager]: detected equality via solver
[2022-01-11 03:28:33,829 INFO  L387             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 396 treesize of output 257
[2022-01-11 03:28:33,917 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-11 03:28:33,917 INFO  L328         TraceCheckSpWp]: Computing backward predicates...