/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i


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


This is Ultimate 0.1.25-d623d84
[2020-07-20 13:55:42,976 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-07-20 13:55:42,978 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-20 13:55:42,996 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-20 13:55:42,996 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-20 13:55:42,999 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-20 13:55:43,000 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-20 13:55:43,010 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-20 13:55:43,014 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-20 13:55:43,017 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-20 13:55:43,019 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-07-20 13:55:43,020 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-20 13:55:43,020 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-20 13:55:43,022 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-20 13:55:43,024 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-20 13:55:43,025 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-20 13:55:43,026 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-20 13:55:43,027 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-20 13:55:43,028 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-20 13:55:43,033 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-20 13:55:43,037 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-20 13:55:43,041 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-20 13:55:43,042 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-07-20 13:55:43,042 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-20 13:55:43,044 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-20 13:55:43,045 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-20 13:55:43,045 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-20 13:55:43,047 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-20 13:55:43,048 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-20 13:55:43,049 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-20 13:55:43,049 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-20 13:55:43,050 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-20 13:55:43,050 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-07-20 13:55:43,051 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-07-20 13:55:43,052 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-20 13:55:43,052 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-20 13:55:43,053 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-07-20 13:55:43,053 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-07-20 13:55:43,053 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-07-20 13:55:43,054 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-07-20 13:55:43,055 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-07-20 13:55:43,056 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-07-20 13:55:43,090 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-07-20 13:55:43,090 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-20 13:55:43,094 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-20 13:55:43,095 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-07-20 13:55:43,095 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-07-20 13:55:43,095 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-20 13:55:43,095 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-07-20 13:55:43,096 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-07-20 13:55:43,096 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-07-20 13:55:43,096 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-07-20 13:55:43,096 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-07-20 13:55:43,097 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-20 13:55:43,097 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-07-20 13:55:43,097 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-07-20 13:55:43,098 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-07-20 13:55:43,098 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-07-20 13:55:43,098 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-07-20 13:55:43,098 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-20 13:55:43,099 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-07-20 13:55:43,099 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-07-20 13:55:43,099 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-07-20 13:55:43,099 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 13:55:43,099 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-20 13:55:43,100 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-07-20 13:55:43,100 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-20 13:55:43,100 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-07-20 13:55:43,100 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:55:43,101 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-20 13:55:43,101 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-07-20 13:55:43,101 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4
[2020-07-20 13:55:43,399 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-20 13:55:43,412 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-20 13:55:43,416 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-20 13:55:43,417 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-07-20 13:55:43,417 INFO  L275        PluginConnector]: CDTParser initialized
[2020-07-20 13:55:43,418 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i
[2020-07-20 13:55:43,497 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f12c14f0/dd084d9b1ce345b8bf917fc94ac3bc68/FLAG71dd34774
[2020-07-20 13:55:44,006 INFO  L306              CDTParser]: Found 1 translation units.
[2020-07-20 13:55:44,007 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i
[2020-07-20 13:55:44,033 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f12c14f0/dd084d9b1ce345b8bf917fc94ac3bc68/FLAG71dd34774
[2020-07-20 13:55:44,293 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f12c14f0/dd084d9b1ce345b8bf917fc94ac3bc68
[2020-07-20 13:55:44,302 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-20 13:55:44,304 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-20 13:55:44,305 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-20 13:55:44,306 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-20 13:55:44,309 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-20 13:55:44,310 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:55:44" (1/1) ...
[2020-07-20 13:55:44,313 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@627d1cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:55:44, skipping insertion in model container
[2020-07-20 13:55:44,313 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:55:44" (1/1) ...
[2020-07-20 13:55:44,320 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-07-20 13:55:44,361 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-07-20 13:55:44,834 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 13:55:44,852 INFO  L203         MainTranslator]: Completed pre-run
[2020-07-20 13:55:44,928 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 13:55:44,975 INFO  L208         MainTranslator]: Completed translation
[2020-07-20 13:55:44,975 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:55:44 WrapperNode
[2020-07-20 13:55:44,976 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-20 13:55:44,976 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-20 13:55:44,977 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-20 13:55:44,977 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-07-20 13:55:44,992 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:55:44" (1/1) ...
[2020-07-20 13:55:44,992 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:55:44" (1/1) ...
[2020-07-20 13:55:45,010 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:55:44" (1/1) ...
[2020-07-20 13:55:45,011 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:55:44" (1/1) ...
[2020-07-20 13:55:45,029 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:55:44" (1/1) ...
[2020-07-20 13:55:45,037 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:55:44" (1/1) ...
[2020-07-20 13:55:45,041 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:55:44" (1/1) ...
[2020-07-20 13:55:45,047 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-20 13:55:45,048 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-20 13:55:45,048 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-07-20 13:55:45,048 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-07-20 13:55:45,049 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:55:44" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 13:55:45,105 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-20 13:55:45,105 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-20 13:55:45,105 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-07-20 13:55:45,105 INFO  L130     BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2020-07-20 13:55:45,106 INFO  L130     BoogieDeclarations]: Found specification of procedure atof
[2020-07-20 13:55:45,106 INFO  L130     BoogieDeclarations]: Found specification of procedure atoi
[2020-07-20 13:55:45,106 INFO  L130     BoogieDeclarations]: Found specification of procedure atol
[2020-07-20 13:55:45,106 INFO  L130     BoogieDeclarations]: Found specification of procedure atoll
[2020-07-20 13:55:45,106 INFO  L130     BoogieDeclarations]: Found specification of procedure strtod
[2020-07-20 13:55:45,106 INFO  L130     BoogieDeclarations]: Found specification of procedure strtof
[2020-07-20 13:55:45,107 INFO  L130     BoogieDeclarations]: Found specification of procedure strtold
[2020-07-20 13:55:45,107 INFO  L130     BoogieDeclarations]: Found specification of procedure strtol
[2020-07-20 13:55:45,107 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoul
[2020-07-20 13:55:45,107 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoq
[2020-07-20 13:55:45,107 INFO  L130     BoogieDeclarations]: Found specification of procedure strtouq
[2020-07-20 13:55:45,107 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoll
[2020-07-20 13:55:45,108 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoull
[2020-07-20 13:55:45,108 INFO  L130     BoogieDeclarations]: Found specification of procedure l64a
[2020-07-20 13:55:45,108 INFO  L130     BoogieDeclarations]: Found specification of procedure a64l
[2020-07-20 13:55:45,108 INFO  L130     BoogieDeclarations]: Found specification of procedure select
[2020-07-20 13:55:45,108 INFO  L130     BoogieDeclarations]: Found specification of procedure pselect
[2020-07-20 13:55:45,108 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2020-07-20 13:55:45,108 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2020-07-20 13:55:45,109 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2020-07-20 13:55:45,109 INFO  L130     BoogieDeclarations]: Found specification of procedure random
[2020-07-20 13:55:45,109 INFO  L130     BoogieDeclarations]: Found specification of procedure srandom
[2020-07-20 13:55:45,109 INFO  L130     BoogieDeclarations]: Found specification of procedure initstate
[2020-07-20 13:55:45,109 INFO  L130     BoogieDeclarations]: Found specification of procedure setstate
[2020-07-20 13:55:45,110 INFO  L130     BoogieDeclarations]: Found specification of procedure random_r
[2020-07-20 13:55:45,110 INFO  L130     BoogieDeclarations]: Found specification of procedure srandom_r
[2020-07-20 13:55:45,110 INFO  L130     BoogieDeclarations]: Found specification of procedure initstate_r
[2020-07-20 13:55:45,110 INFO  L130     BoogieDeclarations]: Found specification of procedure setstate_r
[2020-07-20 13:55:45,110 INFO  L130     BoogieDeclarations]: Found specification of procedure rand
[2020-07-20 13:55:45,110 INFO  L130     BoogieDeclarations]: Found specification of procedure srand
[2020-07-20 13:55:45,111 INFO  L130     BoogieDeclarations]: Found specification of procedure rand_r
[2020-07-20 13:55:45,111 INFO  L130     BoogieDeclarations]: Found specification of procedure drand48
[2020-07-20 13:55:45,111 INFO  L130     BoogieDeclarations]: Found specification of procedure erand48
[2020-07-20 13:55:45,111 INFO  L130     BoogieDeclarations]: Found specification of procedure lrand48
[2020-07-20 13:55:45,111 INFO  L130     BoogieDeclarations]: Found specification of procedure nrand48
[2020-07-20 13:55:45,111 INFO  L130     BoogieDeclarations]: Found specification of procedure mrand48
[2020-07-20 13:55:45,112 INFO  L130     BoogieDeclarations]: Found specification of procedure jrand48
[2020-07-20 13:55:45,112 INFO  L130     BoogieDeclarations]: Found specification of procedure srand48
[2020-07-20 13:55:45,112 INFO  L130     BoogieDeclarations]: Found specification of procedure seed48
[2020-07-20 13:55:45,112 INFO  L130     BoogieDeclarations]: Found specification of procedure lcong48
[2020-07-20 13:55:45,112 INFO  L130     BoogieDeclarations]: Found specification of procedure drand48_r
[2020-07-20 13:55:45,112 INFO  L130     BoogieDeclarations]: Found specification of procedure erand48_r
[2020-07-20 13:55:45,112 INFO  L130     BoogieDeclarations]: Found specification of procedure lrand48_r
[2020-07-20 13:55:45,112 INFO  L130     BoogieDeclarations]: Found specification of procedure nrand48_r
[2020-07-20 13:55:45,112 INFO  L130     BoogieDeclarations]: Found specification of procedure mrand48_r
[2020-07-20 13:55:45,113 INFO  L130     BoogieDeclarations]: Found specification of procedure jrand48_r
[2020-07-20 13:55:45,113 INFO  L130     BoogieDeclarations]: Found specification of procedure srand48_r
[2020-07-20 13:55:45,113 INFO  L130     BoogieDeclarations]: Found specification of procedure seed48_r
[2020-07-20 13:55:45,113 INFO  L130     BoogieDeclarations]: Found specification of procedure lcong48_r
[2020-07-20 13:55:45,113 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-07-20 13:55:45,113 INFO  L130     BoogieDeclarations]: Found specification of procedure calloc
[2020-07-20 13:55:45,114 INFO  L130     BoogieDeclarations]: Found specification of procedure realloc
[2020-07-20 13:55:45,114 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-07-20 13:55:45,114 INFO  L130     BoogieDeclarations]: Found specification of procedure cfree
[2020-07-20 13:55:45,114 INFO  L130     BoogieDeclarations]: Found specification of procedure alloca
[2020-07-20 13:55:45,114 INFO  L130     BoogieDeclarations]: Found specification of procedure valloc
[2020-07-20 13:55:45,114 INFO  L130     BoogieDeclarations]: Found specification of procedure posix_memalign
[2020-07-20 13:55:45,114 INFO  L130     BoogieDeclarations]: Found specification of procedure aligned_alloc
[2020-07-20 13:55:45,115 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-07-20 13:55:45,115 INFO  L130     BoogieDeclarations]: Found specification of procedure atexit
[2020-07-20 13:55:45,115 INFO  L130     BoogieDeclarations]: Found specification of procedure at_quick_exit
[2020-07-20 13:55:45,115 INFO  L130     BoogieDeclarations]: Found specification of procedure on_exit
[2020-07-20 13:55:45,115 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2020-07-20 13:55:45,115 INFO  L130     BoogieDeclarations]: Found specification of procedure quick_exit
[2020-07-20 13:55:45,115 INFO  L130     BoogieDeclarations]: Found specification of procedure _Exit
[2020-07-20 13:55:45,115 INFO  L130     BoogieDeclarations]: Found specification of procedure getenv
[2020-07-20 13:55:45,116 INFO  L130     BoogieDeclarations]: Found specification of procedure putenv
[2020-07-20 13:55:45,116 INFO  L130     BoogieDeclarations]: Found specification of procedure setenv
[2020-07-20 13:55:45,116 INFO  L130     BoogieDeclarations]: Found specification of procedure unsetenv
[2020-07-20 13:55:45,116 INFO  L130     BoogieDeclarations]: Found specification of procedure clearenv
[2020-07-20 13:55:45,116 INFO  L130     BoogieDeclarations]: Found specification of procedure mktemp
[2020-07-20 13:55:45,116 INFO  L130     BoogieDeclarations]: Found specification of procedure mkstemp
[2020-07-20 13:55:45,117 INFO  L130     BoogieDeclarations]: Found specification of procedure mkstemps
[2020-07-20 13:55:45,117 INFO  L130     BoogieDeclarations]: Found specification of procedure mkdtemp
[2020-07-20 13:55:45,117 INFO  L130     BoogieDeclarations]: Found specification of procedure system
[2020-07-20 13:55:45,117 INFO  L130     BoogieDeclarations]: Found specification of procedure realpath
[2020-07-20 13:55:45,117 INFO  L130     BoogieDeclarations]: Found specification of procedure bsearch
[2020-07-20 13:55:45,117 INFO  L130     BoogieDeclarations]: Found specification of procedure qsort
[2020-07-20 13:55:45,118 INFO  L130     BoogieDeclarations]: Found specification of procedure abs
[2020-07-20 13:55:45,118 INFO  L130     BoogieDeclarations]: Found specification of procedure labs
[2020-07-20 13:55:45,118 INFO  L130     BoogieDeclarations]: Found specification of procedure llabs
[2020-07-20 13:55:45,118 INFO  L130     BoogieDeclarations]: Found specification of procedure div
[2020-07-20 13:55:45,118 INFO  L130     BoogieDeclarations]: Found specification of procedure ldiv
[2020-07-20 13:55:45,118 INFO  L130     BoogieDeclarations]: Found specification of procedure lldiv
[2020-07-20 13:55:45,118 INFO  L130     BoogieDeclarations]: Found specification of procedure ecvt
[2020-07-20 13:55:45,118 INFO  L130     BoogieDeclarations]: Found specification of procedure fcvt
[2020-07-20 13:55:45,119 INFO  L130     BoogieDeclarations]: Found specification of procedure gcvt
[2020-07-20 13:55:45,119 INFO  L130     BoogieDeclarations]: Found specification of procedure qecvt
[2020-07-20 13:55:45,119 INFO  L130     BoogieDeclarations]: Found specification of procedure qfcvt
[2020-07-20 13:55:45,119 INFO  L130     BoogieDeclarations]: Found specification of procedure qgcvt
[2020-07-20 13:55:45,119 INFO  L130     BoogieDeclarations]: Found specification of procedure ecvt_r
[2020-07-20 13:55:45,119 INFO  L130     BoogieDeclarations]: Found specification of procedure fcvt_r
[2020-07-20 13:55:45,119 INFO  L130     BoogieDeclarations]: Found specification of procedure qecvt_r
[2020-07-20 13:55:45,119 INFO  L130     BoogieDeclarations]: Found specification of procedure qfcvt_r
[2020-07-20 13:55:45,119 INFO  L130     BoogieDeclarations]: Found specification of procedure mblen
[2020-07-20 13:55:45,119 INFO  L130     BoogieDeclarations]: Found specification of procedure mbtowc
[2020-07-20 13:55:45,120 INFO  L130     BoogieDeclarations]: Found specification of procedure wctomb
[2020-07-20 13:55:45,120 INFO  L130     BoogieDeclarations]: Found specification of procedure mbstowcs
[2020-07-20 13:55:45,120 INFO  L130     BoogieDeclarations]: Found specification of procedure wcstombs
[2020-07-20 13:55:45,120 INFO  L130     BoogieDeclarations]: Found specification of procedure rpmatch
[2020-07-20 13:55:45,120 INFO  L130     BoogieDeclarations]: Found specification of procedure getsubopt
[2020-07-20 13:55:45,120 INFO  L130     BoogieDeclarations]: Found specification of procedure getloadavg
[2020-07-20 13:55:45,120 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-20 13:55:45,120 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-20 13:55:45,120 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-07-20 13:55:45,120 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-07-20 13:55:45,121 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-07-20 13:55:45,121 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-07-20 13:55:45,121 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-07-20 13:55:45,121 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-07-20 13:55:45,121 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-07-20 13:55:45,121 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-20 13:55:45,121 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-20 13:55:45,731 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-20 13:55:45,732 INFO  L295             CfgBuilder]: Removed 17 assume(true) statements.
[2020-07-20 13:55:45,735 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:55:45 BoogieIcfgContainer
[2020-07-20 13:55:45,736 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-20 13:55:45,737 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-20 13:55:45,737 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-07-20 13:55:45,740 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-07-20 13:55:45,740 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:55:44" (1/3) ...
[2020-07-20 13:55:45,741 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b0438a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:55:45, skipping insertion in model container
[2020-07-20 13:55:45,741 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:55:44" (2/3) ...
[2020-07-20 13:55:45,742 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b0438a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:55:45, skipping insertion in model container
[2020-07-20 13:55:45,742 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:55:45" (3/3) ...
[2020-07-20 13:55:45,744 INFO  L109   eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.i
[2020-07-20 13:55:45,754 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-20 13:55:45,762 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations.
[2020-07-20 13:55:45,776 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 7 error locations.
[2020-07-20 13:55:45,801 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-07-20 13:55:45,801 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-07-20 13:55:45,801 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-20 13:55:45,801 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-20 13:55:45,802 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-20 13:55:45,802 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-07-20 13:55:45,802 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-20 13:55:45,802 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-20 13:55:45,823 INFO  L276                IsEmpty]: Start isEmpty. Operand 52 states.
[2020-07-20 13:55:45,829 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-07-20 13:55:45,829 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 13:55:45,830 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 13:55:45,831 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 13:55:45,837 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 13:55:45,838 INFO  L82        PathProgramCache]: Analyzing trace with hash -1255802584, now seen corresponding path program 1 times
[2020-07-20 13:55:45,848 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 13:55:45,848 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177159405]
[2020-07-20 13:55:45,849 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:55:46,109 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s)
[2020-07-20 13:55:46,110 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 13:55:46,114 INFO  L263         TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-07-20 13:55:46,121 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 13:55:46,198 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8
[2020-07-20 13:55:46,200 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:46,208 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:46,209 INFO  L544         ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:46,209 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:8, output treesize:4
[2020-07-20 13:55:46,224 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 13:55:46,225 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 13:55:46,226 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177159405]
[2020-07-20 13:55:46,226 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 13:55:46,227 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-07-20 13:55:46,228 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96056433]
[2020-07-20 13:55:46,232 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-07-20 13:55:46,232 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 13:55:46,246 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-07-20 13:55:46,246 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-07-20 13:55:46,249 INFO  L87              Difference]: Start difference. First operand 52 states. Second operand 4 states.
[2020-07-20 13:55:46,408 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 13:55:46,409 INFO  L93              Difference]: Finished difference Result 104 states and 170 transitions.
[2020-07-20 13:55:46,410 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-07-20 13:55:46,411 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 10
[2020-07-20 13:55:46,411 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 13:55:46,422 INFO  L225             Difference]: With dead ends: 104
[2020-07-20 13:55:46,422 INFO  L226             Difference]: Without dead ends: 49
[2020-07-20 13:55:46,426 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-07-20 13:55:46,447 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2020-07-20 13:55:46,468 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43.
[2020-07-20 13:55:46,470 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 43 states.
[2020-07-20 13:55:46,471 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions.
[2020-07-20 13:55:46,473 INFO  L78                 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 10
[2020-07-20 13:55:46,474 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 13:55:46,474 INFO  L479      AbstractCegarLoop]: Abstraction has 43 states and 46 transitions.
[2020-07-20 13:55:46,474 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-07-20 13:55:46,474 INFO  L276                IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions.
[2020-07-20 13:55:46,475 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-07-20 13:55:46,475 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 13:55:46,475 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 13:55:46,691 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:55:46,691 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 13:55:46,692 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 13:55:46,692 INFO  L82        PathProgramCache]: Analyzing trace with hash -1890143313, now seen corresponding path program 1 times
[2020-07-20 13:55:46,692 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 13:55:46,692 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572102740]
[2020-07-20 13:55:46,693 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:55:47,806 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-20 13:55:47,806 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 13:55:47,809 INFO  L263         TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 13:55:47,811 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 13:55:47,822 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2020-07-20 13:55:47,823 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:47,829 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:47,829 INFO  L544         ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:47,829 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9
[2020-07-20 13:55:47,846 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7
[2020-07-20 13:55:47,847 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:47,851 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:47,852 INFO  L544         ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:47,852 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3
[2020-07-20 13:55:47,859 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 13:55:47,860 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 13:55:47,860 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572102740]
[2020-07-20 13:55:47,860 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 13:55:47,860 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-07-20 13:55:47,861 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253938831]
[2020-07-20 13:55:47,862 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-07-20 13:55:47,862 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 13:55:47,862 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-07-20 13:55:47,863 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-07-20 13:55:47,863 INFO  L87              Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 4 states.
[2020-07-20 13:55:47,930 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 13:55:47,931 INFO  L93              Difference]: Finished difference Result 43 states and 46 transitions.
[2020-07-20 13:55:47,931 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-07-20 13:55:47,931 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 12
[2020-07-20 13:55:47,932 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 13:55:47,933 INFO  L225             Difference]: With dead ends: 43
[2020-07-20 13:55:47,933 INFO  L226             Difference]: Without dead ends: 41
[2020-07-20 13:55:47,934 INFO  L675         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
[2020-07-20 13:55:47,934 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2020-07-20 13:55:47,939 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2020-07-20 13:55:47,939 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 41 states.
[2020-07-20 13:55:47,940 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions.
[2020-07-20 13:55:47,941 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 12
[2020-07-20 13:55:47,941 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 13:55:47,941 INFO  L479      AbstractCegarLoop]: Abstraction has 41 states and 44 transitions.
[2020-07-20 13:55:47,941 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-07-20 13:55:47,941 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions.
[2020-07-20 13:55:47,942 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-07-20 13:55:47,942 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 13:55:47,942 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 13:55:48,156 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:55:48,158 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 13:55:48,158 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 13:55:48,159 INFO  L82        PathProgramCache]: Analyzing trace with hash 290038970, now seen corresponding path program 1 times
[2020-07-20 13:55:48,159 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 13:55:48,160 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097474743]
[2020-07-20 13:55:48,160 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:55:48,313 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s)
[2020-07-20 13:55:48,314 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 13:55:48,315 INFO  L263         TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 8 conjunts are in the unsatisfiable core
[2020-07-20 13:55:48,319 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 13:55:48,325 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2020-07-20 13:55:48,326 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:48,332 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:48,333 INFO  L544         ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:48,333 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9
[2020-07-20 13:55:48,350 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7
[2020-07-20 13:55:48,352 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:48,354 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:48,355 INFO  L544         ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:48,355 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3
[2020-07-20 13:55:48,364 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 13:55:48,364 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 13:55:48,365 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097474743]
[2020-07-20 13:55:48,365 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 13:55:48,365 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-20 13:55:48,366 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087364248]
[2020-07-20 13:55:48,366 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 13:55:48,366 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 13:55:48,367 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 13:55:48,367 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 13:55:48,367 INFO  L87              Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 5 states.
[2020-07-20 13:55:48,515 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 13:55:48,515 INFO  L93              Difference]: Finished difference Result 66 states and 72 transitions.
[2020-07-20 13:55:48,515 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-07-20 13:55:48,516 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 14
[2020-07-20 13:55:48,516 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 13:55:48,517 INFO  L225             Difference]: With dead ends: 66
[2020-07-20 13:55:48,517 INFO  L226             Difference]: Without dead ends: 64
[2020-07-20 13:55:48,518 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2020-07-20 13:55:48,519 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2020-07-20 13:55:48,526 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 48.
[2020-07-20 13:55:48,526 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 48 states.
[2020-07-20 13:55:48,527 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions.
[2020-07-20 13:55:48,527 INFO  L78                 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 14
[2020-07-20 13:55:48,528 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 13:55:48,528 INFO  L479      AbstractCegarLoop]: Abstraction has 48 states and 52 transitions.
[2020-07-20 13:55:48,548 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 13:55:48,548 INFO  L276                IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions.
[2020-07-20 13:55:48,549 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-07-20 13:55:48,549 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 13:55:48,549 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 13:55:48,769 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:55:48,770 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 13:55:48,771 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 13:55:48,771 INFO  L82        PathProgramCache]: Analyzing trace with hash 2060721718, now seen corresponding path program 1 times
[2020-07-20 13:55:48,771 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 13:55:48,772 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133332735]
[2020-07-20 13:55:48,772 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:55:49,303 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s)
[2020-07-20 13:55:49,303 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 13:55:49,310 INFO  L263         TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-07-20 13:55:49,312 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 13:55:49,347 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:55:49,497 WARN  L193               SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42
[2020-07-20 13:55:49,499 INFO  L350             Elim1Store]: treesize reduction 106, result has 48.5 percent of original size
[2020-07-20 13:55:49,500 INFO  L384             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 2 case distinctions, treesize of input 74 treesize of output 107
[2020-07-20 13:55:49,501 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:49,667 WARN  L193               SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53
[2020-07-20 13:55:49,669 INFO  L624         ElimStorePlain]: treesize reduction 36, result has 80.1 percent of original size
[2020-07-20 13:55:49,680 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:55:49,827 WARN  L193               SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39
[2020-07-20 13:55:49,827 INFO  L350             Elim1Store]: treesize reduction 115, result has 44.2 percent of original size
[2020-07-20 13:55:49,828 INFO  L384             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 2 case distinctions, treesize of input 74 treesize of output 98
[2020-07-20 13:55:49,829 INFO  L544         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:49,963 WARN  L193               SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50
[2020-07-20 13:55:49,964 INFO  L624         ElimStorePlain]: treesize reduction 36, result has 78.6 percent of original size
[2020-07-20 13:55:49,969 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts
[2020-07-20 13:55:49,972 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts
[2020-07-20 13:55:49,974 INFO  L501       QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts
[2020-07-20 13:55:49,980 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts
[2020-07-20 13:55:49,981 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts
[2020-07-20 13:55:49,984 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts
[2020-07-20 13:55:49,986 INFO  L501       QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts
[2020-07-20 13:55:49,990 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts
[2020-07-20 13:55:49,993 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts
[2020-07-20 13:55:49,996 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts
[2020-07-20 13:55:49,998 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts
[2020-07-20 13:55:50,001 INFO  L501       QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts
[2020-07-20 13:55:50,006 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts
[2020-07-20 13:55:50,008 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts
[2020-07-20 13:55:50,009 INFO  L501       QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts
[2020-07-20 13:55:50,013 INFO  L501       QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts
[2020-07-20 13:55:50,017 INFO  L501       QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts
[2020-07-20 13:55:50,018 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts
[2020-07-20 13:55:50,021 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts
[2020-07-20 13:55:50,024 INFO  L501       QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts
[2020-07-20 13:55:50,026 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts
[2020-07-20 13:55:50,029 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts
[2020-07-20 13:55:50,032 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts
[2020-07-20 13:55:50,035 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts
[2020-07-20 13:55:50,039 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts
[2020-07-20 13:55:50,041 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts
[2020-07-20 13:55:50,043 INFO  L501       QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts
[2020-07-20 13:55:50,047 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts
[2020-07-20 13:55:50,049 INFO  L501       QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts
[2020-07-20 13:55:50,050 INFO  L544         ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:50,051 INFO  L244         ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:149, output treesize:15
[2020-07-20 13:55:50,075 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2020-07-20 13:55:50,076 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:50,085 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:50,088 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2020-07-20 13:55:50,088 INFO  L544         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:50,092 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:50,093 INFO  L544         ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:50,093 INFO  L244         ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7
[2020-07-20 13:55:50,114 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 13:55:50,114 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 13:55:50,115 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2133332735]
[2020-07-20 13:55:50,116 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 13:55:50,116 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-07-20 13:55:50,116 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514642709]
[2020-07-20 13:55:50,116 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-07-20 13:55:50,117 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 13:55:50,117 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-07-20 13:55:50,117 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-07-20 13:55:50,117 INFO  L87              Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 4 states.
[2020-07-20 13:55:50,224 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 13:55:50,225 INFO  L93              Difference]: Finished difference Result 48 states and 52 transitions.
[2020-07-20 13:55:50,226 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-07-20 13:55:50,226 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 15
[2020-07-20 13:55:50,226 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 13:55:50,227 INFO  L225             Difference]: With dead ends: 48
[2020-07-20 13:55:50,227 INFO  L226             Difference]: Without dead ends: 46
[2020-07-20 13:55:50,227 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-07-20 13:55:50,228 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2020-07-20 13:55:50,233 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46.
[2020-07-20 13:55:50,233 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 46 states.
[2020-07-20 13:55:50,234 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions.
[2020-07-20 13:55:50,234 INFO  L78                 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 15
[2020-07-20 13:55:50,234 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 13:55:50,235 INFO  L479      AbstractCegarLoop]: Abstraction has 46 states and 50 transitions.
[2020-07-20 13:55:50,235 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-07-20 13:55:50,235 INFO  L276                IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions.
[2020-07-20 13:55:50,235 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-07-20 13:55:50,235 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 13:55:50,236 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 13:55:50,439 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:55:50,439 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 13:55:50,440 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 13:55:50,440 INFO  L82        PathProgramCache]: Analyzing trace with hash 373775322, now seen corresponding path program 1 times
[2020-07-20 13:55:50,441 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 13:55:50,441 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219899034]
[2020-07-20 13:55:50,442 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:55:50,807 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s)
[2020-07-20 13:55:50,807 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 13:55:50,809 INFO  L263         TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 20 conjunts are in the unsatisfiable core
[2020-07-20 13:55:50,811 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 13:55:50,827 INFO  L350             Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2020-07-20 13:55:50,827 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11
[2020-07-20 13:55:50,828 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:50,831 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:50,831 INFO  L544         ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:50,832 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:11
[2020-07-20 13:55:50,912 INFO  L350             Elim1Store]: treesize reduction 8, result has 87.3 percent of original size
[2020-07-20 13:55:50,913 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 69
[2020-07-20 13:55:50,915 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:50,952 INFO  L624         ElimStorePlain]: treesize reduction 28, result has 67.1 percent of original size
[2020-07-20 13:55:50,956 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:55:50,957 INFO  L544         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:50,969 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:50,970 INFO  L544         ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:55:50,971 INFO  L244         ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:55, output treesize:24
[2020-07-20 13:55:51,025 INFO  L350             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:51,026 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26
[2020-07-20 13:55:51,027 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:51,037 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:51,039 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:55:51,040 INFO  L544         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:51,045 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:51,046 INFO  L544         ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:51,047 INFO  L244         ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:53, output treesize:4
[2020-07-20 13:55:51,052 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 13:55:51,052 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 13:55:51,052 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219899034]
[2020-07-20 13:55:51,053 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 13:55:51,053 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-20 13:55:51,053 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151344156]
[2020-07-20 13:55:51,054 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 13:55:51,054 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 13:55:51,054 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 13:55:51,055 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-07-20 13:55:51,055 INFO  L87              Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 5 states.
[2020-07-20 13:55:51,122 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 13:55:51,122 INFO  L93              Difference]: Finished difference Result 46 states and 50 transitions.
[2020-07-20 13:55:51,127 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 13:55:51,127 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 17
[2020-07-20 13:55:51,128 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 13:55:51,128 INFO  L225             Difference]: With dead ends: 46
[2020-07-20 13:55:51,128 INFO  L226             Difference]: Without dead ends: 44
[2020-07-20 13:55:51,129 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-07-20 13:55:51,129 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2020-07-20 13:55:51,133 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2020-07-20 13:55:51,134 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 44 states.
[2020-07-20 13:55:51,134 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions.
[2020-07-20 13:55:51,135 INFO  L78                 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17
[2020-07-20 13:55:51,135 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 13:55:51,135 INFO  L479      AbstractCegarLoop]: Abstraction has 44 states and 48 transitions.
[2020-07-20 13:55:51,135 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 13:55:51,135 INFO  L276                IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions.
[2020-07-20 13:55:51,136 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-07-20 13:55:51,136 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 13:55:51,136 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 13:55:51,343 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:55:51,344 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 13:55:51,345 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 13:55:51,345 INFO  L82        PathProgramCache]: Analyzing trace with hash 1568846049, now seen corresponding path program 1 times
[2020-07-20 13:55:51,345 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 13:55:51,346 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182965824]
[2020-07-20 13:55:51,346 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:55:51,469 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s)
[2020-07-20 13:55:51,470 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 13:55:51,471 INFO  L263         TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-07-20 13:55:51,473 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 13:55:51,479 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2020-07-20 13:55:51,480 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:51,482 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:51,482 INFO  L544         ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:51,482 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9
[2020-07-20 13:55:51,502 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7
[2020-07-20 13:55:51,503 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:51,504 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:51,504 INFO  L544         ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:51,504 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3
[2020-07-20 13:55:51,512 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 13:55:51,512 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 13:55:51,512 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182965824]
[2020-07-20 13:55:51,512 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 13:55:51,513 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-20 13:55:51,513 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165482374]
[2020-07-20 13:55:51,513 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 13:55:51,513 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 13:55:51,514 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 13:55:51,514 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 13:55:51,514 INFO  L87              Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 5 states.
[2020-07-20 13:55:51,638 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 13:55:51,638 INFO  L93              Difference]: Finished difference Result 72 states and 79 transitions.
[2020-07-20 13:55:51,639 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-07-20 13:55:51,639 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 18
[2020-07-20 13:55:51,639 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 13:55:51,640 INFO  L225             Difference]: With dead ends: 72
[2020-07-20 13:55:51,640 INFO  L226             Difference]: Without dead ends: 60
[2020-07-20 13:55:51,641 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2020-07-20 13:55:51,641 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2020-07-20 13:55:51,645 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 47.
[2020-07-20 13:55:51,646 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 47 states.
[2020-07-20 13:55:51,647 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions.
[2020-07-20 13:55:51,647 INFO  L78                 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 18
[2020-07-20 13:55:51,647 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 13:55:51,647 INFO  L479      AbstractCegarLoop]: Abstraction has 47 states and 51 transitions.
[2020-07-20 13:55:51,647 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 13:55:51,647 INFO  L276                IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions.
[2020-07-20 13:55:51,648 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-07-20 13:55:51,648 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 13:55:51,648 INFO  L422         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 13:55:51,853 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:55:51,853 INFO  L427      AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 13:55:51,854 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 13:55:51,854 INFO  L82        PathProgramCache]: Analyzing trace with hash 777661568, now seen corresponding path program 1 times
[2020-07-20 13:55:51,854 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 13:55:51,855 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [123966845]
[2020-07-20 13:55:51,855 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:55:51,980 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s)
[2020-07-20 13:55:51,980 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 13:55:51,982 INFO  L263         TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjunts are in the unsatisfiable core
[2020-07-20 13:55:51,984 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 13:55:52,006 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:55:52,007 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:55:52,008 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:55:52,010 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17
[2020-07-20 13:55:52,010 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:52,024 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:52,042 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:55:52,043 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:55:52,045 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:55:52,047 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17
[2020-07-20 13:55:52,048 INFO  L544         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:52,059 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:52,059 INFO  L544         ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:52,060 INFO  L244         ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:55, output treesize:33
[2020-07-20 13:55:52,091 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:55:52,092 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10
[2020-07-20 13:55:52,093 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:52,103 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:52,107 INFO  L350             Elim1Store]: treesize reduction 9, result has 10.0 percent of original size
[2020-07-20 13:55:52,108 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 10
[2020-07-20 13:55:52,108 INFO  L544         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:52,114 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:52,115 INFO  L544         ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:52,115 INFO  L244         ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:7
[2020-07-20 13:55:52,126 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 13:55:52,127 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 13:55:52,170 INFO  L501       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-07-20 13:55:52,190 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 13:55:52,191 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [123966845]
[2020-07-20 13:55:52,191 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 13:55:52,191 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2020-07-20 13:55:52,192 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725699148]
[2020-07-20 13:55:52,192 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-07-20 13:55:52,193 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 13:55:52,193 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-07-20 13:55:52,195 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2020-07-20 13:55:52,195 INFO  L87              Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 7 states.
[2020-07-20 13:55:52,470 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 13:55:52,471 INFO  L93              Difference]: Finished difference Result 61 states and 66 transitions.
[2020-07-20 13:55:52,471 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-07-20 13:55:52,471 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 21
[2020-07-20 13:55:52,472 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 13:55:52,472 INFO  L225             Difference]: With dead ends: 61
[2020-07-20 13:55:52,472 INFO  L226             Difference]: Without dead ends: 39
[2020-07-20 13:55:52,473 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2020-07-20 13:55:52,474 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2020-07-20 13:55:52,477 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39.
[2020-07-20 13:55:52,478 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 39 states.
[2020-07-20 13:55:52,478 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions.
[2020-07-20 13:55:52,479 INFO  L78                 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 21
[2020-07-20 13:55:52,479 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 13:55:52,479 INFO  L479      AbstractCegarLoop]: Abstraction has 39 states and 42 transitions.
[2020-07-20 13:55:52,479 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-07-20 13:55:52,479 INFO  L276                IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions.
[2020-07-20 13:55:52,480 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-07-20 13:55:52,480 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 13:55:52,480 INFO  L422         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 13:55:52,689 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:55:52,689 INFO  L427      AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 13:55:52,690 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 13:55:52,690 INFO  L82        PathProgramCache]: Analyzing trace with hash -1056872398, now seen corresponding path program 1 times
[2020-07-20 13:55:52,691 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 13:55:52,691 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977615152]
[2020-07-20 13:55:52,692 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:55:53,204 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s)
[2020-07-20 13:55:53,205 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 13:55:53,206 INFO  L263         TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 32 conjunts are in the unsatisfiable core
[2020-07-20 13:55:53,210 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 13:55:53,225 INFO  L350             Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2020-07-20 13:55:53,226 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11
[2020-07-20 13:55:53,226 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:53,236 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:53,239 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2020-07-20 13:55:53,240 INFO  L544         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:53,248 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:53,250 INFO  L544         ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:55:53,250 INFO  L244         ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:26
[2020-07-20 13:55:53,313 INFO  L350             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:53,313 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39
[2020-07-20 13:55:53,315 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:53,387 INFO  L624         ElimStorePlain]: treesize reduction 14, result has 88.6 percent of original size
[2020-07-20 13:55:53,392 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:55:53,393 INFO  L544         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:53,428 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:53,437 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:55:53,441 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13
[2020-07-20 13:55:53,442 INFO  L544         ElimStorePlain]: Start of recursive call 4:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:53,471 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:53,476 INFO  L544         ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:55:53,502 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:53,544 INFO  L350             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:53,545 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48
[2020-07-20 13:55:53,546 INFO  L544         ElimStorePlain]: Start of recursive call 6:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:53,584 INFO  L624         ElimStorePlain]: treesize reduction 20, result has 69.2 percent of original size
[2020-07-20 13:55:53,587 INFO  L544         ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:53,588 INFO  L244         ElimStorePlain]: Needed 6 recursive calls to eliminate 8 variables, input treesize:111, output treesize:24
[2020-07-20 13:55:53,710 INFO  L350             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:53,711 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26
[2020-07-20 13:55:53,712 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:53,773 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:53,776 INFO  L440         ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.base_34|, |v_#memory_int_44|, |v_#memory_int_45|, |v_#memory_int_43|], 4=[|v_#memory_int_47|]}
[2020-07-20 13:55:53,779 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:55:53,781 INFO  L544         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:53,818 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:53,822 INFO  L544         ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:55:53,846 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:53,848 INFO  L544         ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:55:53,870 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:53,873 INFO  L544         ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:55:53,904 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:53,907 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:55:53,958 INFO  L350             Elim1Store]: treesize reduction 65, result has 46.7 percent of original size
[2020-07-20 13:55:53,959 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 85
[2020-07-20 13:55:53,960 INFO  L544         ElimStorePlain]: Start of recursive call 7:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:54,022 INFO  L624         ElimStorePlain]: treesize reduction 18, result has 80.9 percent of original size
[2020-07-20 13:55:54,029 INFO  L544         ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars,  End of recursive call: 4 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:55:54,030 INFO  L244         ElimStorePlain]: Needed 7 recursive calls to eliminate 11 variables, input treesize:246, output treesize:40
[2020-07-20 13:55:54,133 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 13
[2020-07-20 13:55:54,134 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:54,140 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:54,141 INFO  L544         ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:54,141 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:49, output treesize:3
[2020-07-20 13:55:54,160 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 13:55:54,160 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 13:55:54,194 INFO  L440         ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.base_34|, |v_#memory_int_44|, |v_#memory_int_45|], 3=[|v_#memory_int_43|]}
[2020-07-20 13:55:54,206 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:54,375 WARN  L193               SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51
[2020-07-20 13:55:54,376 INFO  L624         ElimStorePlain]: treesize reduction 78, result has 51.6 percent of original size
[2020-07-20 13:55:54,380 INFO  L544         ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:55:54,401 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:54,404 INFO  L544         ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:55:54,422 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:54,431 INFO  L544         ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:55:54,449 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:54,450 INFO  L544         ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-2 vars,  End of recursive call: 6 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:55:54,451 INFO  L244         ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:233, output treesize:60
[2020-07-20 13:55:54,533 INFO  L440         ElimStorePlain]: Different costs {2=[|#memory_$Pointer$.base|, |v_#memory_int_41|, |v_#memory_int_42|], 7=[|v_#memory_int_49|]}
[2020-07-20 13:55:54,545 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:54,999 WARN  L193               SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 68
[2020-07-20 13:55:55,000 INFO  L624         ElimStorePlain]: treesize reduction 112, result has 51.9 percent of original size
[2020-07-20 13:55:55,005 INFO  L544         ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:55:55,041 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:55,047 INFO  L544         ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:55:55,080 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:55,083 INFO  L544         ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:55:55,102 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:55,104 INFO  L544         ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 4 dim-2 vars,  End of recursive call: 12 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:55:55,104 INFO  L244         ElimStorePlain]: Needed 5 recursive calls to eliminate 13 variables, input treesize:331, output treesize:117
[2020-07-20 13:55:57,282 INFO  L350             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:55:57,283 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 32
[2020-07-20 13:55:57,283 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:57,287 INFO  L624         ElimStorePlain]: treesize reduction 140, result has 0.7 percent of original size
[2020-07-20 13:55:57,289 INFO  L512         ElimStorePlain]: Eliminatee |v_#memory_int_40| vanished before elimination
[2020-07-20 13:55:57,289 INFO  L544         ElimStorePlain]: Start of recursive call 1: 16 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:55:57,290 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 18 variables, input treesize:153, output treesize:1
[2020-07-20 13:55:57,311 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 13:55:57,311 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977615152]
[2020-07-20 13:55:57,312 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 13:55:57,312 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11
[2020-07-20 13:55:57,312 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038045447]
[2020-07-20 13:55:57,312 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-07-20 13:55:57,313 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 13:55:57,313 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-07-20 13:55:57,314 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=83, Unknown=1, NotChecked=0, Total=110
[2020-07-20 13:55:57,314 INFO  L87              Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 11 states.
[2020-07-20 13:56:05,949 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 13:56:05,949 INFO  L93              Difference]: Finished difference Result 73 states and 81 transitions.
[2020-07-20 13:56:05,950 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-07-20 13:56:05,950 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states. Word has length 25
[2020-07-20 13:56:05,950 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 13:56:05,951 INFO  L225             Difference]: With dead ends: 73
[2020-07-20 13:56:05,951 INFO  L226             Difference]: Without dead ends: 71
[2020-07-20 13:56:05,952 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=70, Invalid=169, Unknown=1, NotChecked=0, Total=240
[2020-07-20 13:56:05,952 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2020-07-20 13:56:05,956 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 37.
[2020-07-20 13:56:05,956 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 37 states.
[2020-07-20 13:56:05,957 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions.
[2020-07-20 13:56:05,957 INFO  L78                 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 25
[2020-07-20 13:56:05,957 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 13:56:05,957 INFO  L479      AbstractCegarLoop]: Abstraction has 37 states and 40 transitions.
[2020-07-20 13:56:05,958 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-07-20 13:56:05,958 INFO  L276                IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions.
[2020-07-20 13:56:05,958 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2020-07-20 13:56:05,959 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 13:56:05,959 INFO  L422         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 13:56:06,172 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:56:06,173 INFO  L427      AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 13:56:06,173 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 13:56:06,173 INFO  L82        PathProgramCache]: Analyzing trace with hash 473692249, now seen corresponding path program 1 times
[2020-07-20 13:56:06,173 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 13:56:06,174 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83063724]
[2020-07-20 13:56:06,174 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:56:06,715 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s)
[2020-07-20 13:56:06,716 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 13:56:06,719 INFO  L263         TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 33 conjunts are in the unsatisfiable core
[2020-07-20 13:56:06,722 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 13:56:06,738 INFO  L350             Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2020-07-20 13:56:06,739 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11
[2020-07-20 13:56:06,739 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:06,749 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:06,754 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2020-07-20 13:56:06,754 INFO  L544         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:06,764 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:06,765 INFO  L544         ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:06,765 INFO  L244         ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:26
[2020-07-20 13:56:06,821 INFO  L350             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:06,822 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39
[2020-07-20 13:56:06,823 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:06,903 INFO  L624         ElimStorePlain]: treesize reduction 14, result has 88.6 percent of original size
[2020-07-20 13:56:06,908 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:56:06,909 INFO  L544         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:06,936 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:06,948 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:56:06,950 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13
[2020-07-20 13:56:06,951 INFO  L544         ElimStorePlain]: Start of recursive call 4:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:06,969 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:06,971 INFO  L544         ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:06,989 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:07,008 INFO  L350             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:07,008 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48
[2020-07-20 13:56:07,009 INFO  L544         ElimStorePlain]: Start of recursive call 6:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:07,051 INFO  L624         ElimStorePlain]: treesize reduction 20, result has 69.2 percent of original size
[2020-07-20 13:56:07,052 INFO  L544         ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:07,052 INFO  L244         ElimStorePlain]: Needed 6 recursive calls to eliminate 8 variables, input treesize:111, output treesize:24
[2020-07-20 13:56:07,127 INFO  L350             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:07,128 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26
[2020-07-20 13:56:07,128 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:07,183 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:07,185 INFO  L440         ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.base_39|, |v_#memory_int_55|, |v_#memory_int_56|, |v_#memory_int_54|], 4=[|v_#memory_int_58|]}
[2020-07-20 13:56:07,189 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:56:07,190 INFO  L544         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:07,234 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:07,237 INFO  L544         ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:07,263 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:07,268 INFO  L544         ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:07,297 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:07,301 INFO  L544         ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:07,319 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:07,328 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:56:07,382 INFO  L350             Elim1Store]: treesize reduction 65, result has 46.7 percent of original size
[2020-07-20 13:56:07,382 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 85
[2020-07-20 13:56:07,383 INFO  L544         ElimStorePlain]: Start of recursive call 7:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:07,450 INFO  L624         ElimStorePlain]: treesize reduction 18, result has 80.9 percent of original size
[2020-07-20 13:56:07,456 INFO  L544         ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars,  End of recursive call: 4 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:07,457 INFO  L244         ElimStorePlain]: Needed 7 recursive calls to eliminate 11 variables, input treesize:246, output treesize:40
[2020-07-20 13:56:07,569 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 13
[2020-07-20 13:56:07,570 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:07,581 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:07,581 INFO  L544         ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:07,582 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:49, output treesize:3
[2020-07-20 13:56:07,609 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 13:56:07,610 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 13:56:07,668 INFO  L440         ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.base_39|, |v_#memory_int_55|, |v_#memory_int_56|], 3=[|v_#memory_int_54|]}
[2020-07-20 13:56:07,679 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:08,054 WARN  L193               SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 53
[2020-07-20 13:56:08,055 INFO  L624         ElimStorePlain]: treesize reduction 80, result has 51.5 percent of original size
[2020-07-20 13:56:08,060 INFO  L544         ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:08,106 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:08,110 INFO  L544         ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:08,142 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:08,145 INFO  L544         ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:08,164 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:08,165 INFO  L544         ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-2 vars,  End of recursive call: 6 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:08,166 INFO  L244         ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:235, output treesize:62
[2020-07-20 13:56:08,248 INFO  L440         ElimStorePlain]: Different costs {2=[|#memory_$Pointer$.base|, |v_#memory_int_52|, |v_#memory_int_53|], 7=[|v_#memory_int_60|]}
[2020-07-20 13:56:08,258 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:08,745 WARN  L193               SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69
[2020-07-20 13:56:08,746 INFO  L624         ElimStorePlain]: treesize reduction 114, result has 51.9 percent of original size
[2020-07-20 13:56:08,751 INFO  L544         ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:08,797 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:08,802 INFO  L544         ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:08,843 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:08,846 INFO  L544         ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:08,872 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:08,875 INFO  L544         ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 4 dim-2 vars,  End of recursive call: 12 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:08,875 INFO  L244         ElimStorePlain]: Needed 5 recursive calls to eliminate 13 variables, input treesize:333, output treesize:119
[2020-07-20 13:56:11,006 INFO  L350             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:11,006 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 32
[2020-07-20 13:56:11,007 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:11,010 INFO  L624         ElimStorePlain]: treesize reduction 142, result has 0.7 percent of original size
[2020-07-20 13:56:11,013 INFO  L512         ElimStorePlain]: Eliminatee |v_#memory_int_51| vanished before elimination
[2020-07-20 13:56:11,014 INFO  L544         ElimStorePlain]: Start of recursive call 1: 16 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:11,014 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 18 variables, input treesize:155, output treesize:1
[2020-07-20 13:56:11,022 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 13:56:11,023 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83063724]
[2020-07-20 13:56:11,023 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 13:56:11,023 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11
[2020-07-20 13:56:11,023 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523990435]
[2020-07-20 13:56:11,024 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-07-20 13:56:11,024 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 13:56:11,024 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-07-20 13:56:11,024 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=83, Unknown=1, NotChecked=0, Total=110
[2020-07-20 13:56:11,024 INFO  L87              Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 11 states.
[2020-07-20 13:56:21,622 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 13:56:21,623 INFO  L93              Difference]: Finished difference Result 83 states and 91 transitions.
[2020-07-20 13:56:21,623 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-07-20 13:56:21,624 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states. Word has length 29
[2020-07-20 13:56:21,624 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 13:56:21,625 INFO  L225             Difference]: With dead ends: 83
[2020-07-20 13:56:21,625 INFO  L226             Difference]: Without dead ends: 71
[2020-07-20 13:56:21,626 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=70, Invalid=169, Unknown=1, NotChecked=0, Total=240
[2020-07-20 13:56:21,627 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2020-07-20 13:56:21,631 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 39.
[2020-07-20 13:56:21,631 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 39 states.
[2020-07-20 13:56:21,632 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions.
[2020-07-20 13:56:21,632 INFO  L78                 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 29
[2020-07-20 13:56:21,632 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 13:56:21,632 INFO  L479      AbstractCegarLoop]: Abstraction has 39 states and 42 transitions.
[2020-07-20 13:56:21,632 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-07-20 13:56:21,633 INFO  L276                IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions.
[2020-07-20 13:56:21,633 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2020-07-20 13:56:21,633 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 13:56:21,634 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 13:56:21,834 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:56:21,835 INFO  L427      AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 13:56:21,835 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 13:56:21,835 INFO  L82        PathProgramCache]: Analyzing trace with hash -377613816, now seen corresponding path program 1 times
[2020-07-20 13:56:21,836 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 13:56:21,836 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588034157]
[2020-07-20 13:56:21,836 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 13:56:22,557 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-20 13:56:22,557 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 13:56:22,561 INFO  L263         TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 51 conjunts are in the unsatisfiable core
[2020-07-20 13:56:22,563 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 13:56:22,581 INFO  L350             Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2020-07-20 13:56:22,594 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11
[2020-07-20 13:56:22,595 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:22,613 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:22,614 INFO  L544         ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:22,614 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:23
[2020-07-20 13:56:22,672 INFO  L350             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:22,672 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39
[2020-07-20 13:56:22,673 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:22,796 WARN  L193               SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50
[2020-07-20 13:56:22,797 INFO  L624         ElimStorePlain]: treesize reduction 14, result has 93.5 percent of original size
[2020-07-20 13:56:22,805 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:56:22,813 INFO  L173   IndexEqualityManager]: detected equality via solver
[2020-07-20 13:56:22,826 INFO  L350             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:22,826 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 41
[2020-07-20 13:56:22,827 INFO  L544         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:22,893 INFO  L624         ElimStorePlain]: treesize reduction 16, result has 89.4 percent of original size
[2020-07-20 13:56:22,896 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:56:22,916 INFO  L350             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:22,916 INFO  L384             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 1 case distinctions, treesize of input 63 treesize of output 41
[2020-07-20 13:56:22,916 INFO  L544         ElimStorePlain]: Start of recursive call 4:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:22,974 INFO  L624         ElimStorePlain]: treesize reduction 16, result has 81.2 percent of original size
[2020-07-20 13:56:22,975 INFO  L544         ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:22,975 INFO  L244         ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:203, output treesize:82
[2020-07-20 13:56:23,065 INFO  L350             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:23,066 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 30
[2020-07-20 13:56:23,066 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:23,263 WARN  L193               SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 81
[2020-07-20 13:56:23,264 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:23,266 INFO  L440         ElimStorePlain]: Different costs {6=[|v_#memory_$Pointer$.base_46|, |v_#memory_$Pointer$.offset_40|], 11=[|v_#memory_$Pointer$.offset_38|, |v_#memory_$Pointer$.base_44|]}
[2020-07-20 13:56:23,276 INFO  L350             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:23,277 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 433 treesize of output 289
[2020-07-20 13:56:23,279 INFO  L544         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:23,609 WARN  L193               SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75
[2020-07-20 13:56:23,609 INFO  L624         ElimStorePlain]: treesize reduction 16, result has 96.4 percent of original size
[2020-07-20 13:56:23,644 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 39
[2020-07-20 13:56:23,645 INFO  L544         ElimStorePlain]: Start of recursive call 4:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:23,838 WARN  L193               SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 69
[2020-07-20 13:56:23,839 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:23,843 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:56:23,852 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:56:23,854 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:56:23,855 INFO  L173   IndexEqualityManager]: detected equality via solver
[2020-07-20 13:56:23,862 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:56:23,905 INFO  L350             Elim1Store]: treesize reduction 5, result has 90.7 percent of original size
[2020-07-20 13:56:23,906 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 97
[2020-07-20 13:56:23,907 INFO  L544         ElimStorePlain]: Start of recursive call 5:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:24,041 WARN  L193               SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60
[2020-07-20 13:56:24,042 INFO  L624         ElimStorePlain]: treesize reduction 41, result has 86.4 percent of original size
[2020-07-20 13:56:24,049 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:56:24,051 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:56:24,096 INFO  L350             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:24,097 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 174 treesize of output 144
[2020-07-20 13:56:24,099 INFO  L544         ElimStorePlain]: Start of recursive call 6:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:24,230 WARN  L193               SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45
[2020-07-20 13:56:24,231 INFO  L624         ElimStorePlain]: treesize reduction 134, result has 42.7 percent of original size
[2020-07-20 13:56:24,232 INFO  L544         ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:24,235 INFO  L244         ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:457, output treesize:97
[2020-07-20 13:56:24,393 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:56:24,394 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:56:24,397 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 19
[2020-07-20 13:56:24,397 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:24,417 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:24,419 INFO  L544         ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:24,419 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:135, output treesize:72
[2020-07-20 13:56:24,520 INFO  L350             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:24,520 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 14 case distinctions, treesize of input 69 treesize of output 82
[2020-07-20 13:56:24,522 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts
[2020-07-20 13:56:24,522 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts
[2020-07-20 13:56:24,523 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2020-07-20 13:56:24,523 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2020-07-20 13:56:24,526 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-07-20 13:56:24,527 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts
[2020-07-20 13:56:24,529 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts
[2020-07-20 13:56:24,531 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2020-07-20 13:56:24,533 INFO  L501       QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts
[2020-07-20 13:56:24,534 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2020-07-20 13:56:24,534 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-07-20 13:56:24,535 INFO  L544         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:24,539 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:24,539 INFO  L544         ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2020-07-20 13:56:24,539 INFO  L244         ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:73, output treesize:4
[2020-07-20 13:56:24,572 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 13:56:24,572 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 13:56:24,670 INFO  L501       QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts
[2020-07-20 13:56:24,673 INFO  L501       QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts
[2020-07-20 13:56:24,676 INFO  L501       QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts
[2020-07-20 13:56:24,683 INFO  L440         ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_41|], 6=[|v_#memory_$Pointer$.base_47|], 20=[|v_#memory_$Pointer$.offset_38|, |v_#memory_$Pointer$.base_44|]}
[2020-07-20 13:56:24,697 INFO  L544         ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:24,709 INFO  L544         ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:25,048 WARN  L193               SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 83
[2020-07-20 13:56:25,048 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:25,057 INFO  L544         ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:25,068 INFO  L544         ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:25,322 WARN  L193               SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 85
[2020-07-20 13:56:25,322 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:25,340 INFO  L544         ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:25,354 INFO  L544         ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:25,983 WARN  L193               SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 93
[2020-07-20 13:56:25,984 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:26,005 INFO  L544         ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:26,016 INFO  L544         ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2020-07-20 13:56:26,366 WARN  L193               SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 98
[2020-07-20 13:56:26,366 INFO  L624         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2020-07-20 13:56:26,368 INFO  L544         ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars,  End of recursive call: 10 dim-0 vars,  and 2 xjuncts.
[2020-07-20 13:56:26,369 INFO  L244         ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:1145, output treesize:1527
[2020-07-20 13:56:27,533 WARN  L193               SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 104
[2020-07-20 13:56:27,542 INFO  L501       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-07-20 13:56:27,557 INFO  L440         ElimStorePlain]: Different costs {36=[|#memory_$Pointer$.offset|], 66=[|#memory_$Pointer$.base|]}
[2020-07-20 13:56:56,849 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2020-07-20 13:56:56,851 INFO  L173   IndexEqualityManager]: detected equality via solver
[2020-07-20 13:57:00,609 INFO  L173   IndexEqualityManager]: detected equality via solver
[2020-07-20 13:57:03,674 INFO  L384             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89679482533084727 treesize of output 89678932777270839