/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 BIGGEST_EQUIVALENCE_CLASS --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/eca-rers2012/Problem10_label04.c


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


This is Ultimate 0.1.25-d623d84
[2020-07-21 01:26:42,037 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-07-21 01:26:42,040 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-21 01:26:42,059 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-21 01:26:42,059 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-21 01:26:42,062 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-21 01:26:42,063 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-21 01:26:42,077 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-21 01:26:42,079 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-21 01:26:42,080 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-21 01:26:42,082 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-07-21 01:26:42,083 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-21 01:26:42,084 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-21 01:26:42,087 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-21 01:26:42,089 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-21 01:26:42,091 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-21 01:26:42,093 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-21 01:26:42,094 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-21 01:26:42,097 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-21 01:26:42,101 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-21 01:26:42,103 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-21 01:26:42,107 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-21 01:26:42,108 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-07-21 01:26:42,109 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-21 01:26:42,112 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-21 01:26:42,112 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-21 01:26:42,113 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-21 01:26:42,115 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-21 01:26:42,116 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-21 01:26:42,116 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-21 01:26:42,117 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-21 01:26:42,118 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-21 01:26:42,119 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-07-21 01:26:42,122 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-21 01:26:42,122 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-21 01:26:42,123 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-07-21 01:26:42,123 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-07-21 01:26:42,125 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-07-21 01:26:42,126 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
[2020-07-21 01:26:42,146 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-07-21 01:26:42,146 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-21 01:26:42,147 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-21 01:26:42,148 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-07-21 01:26:42,148 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-07-21 01:26:42,148 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-21 01:26:42,148 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-07-21 01:26:42,149 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-07-21 01:26:42,149 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-07-21 01:26:42,149 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-07-21 01:26:42,150 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-07-21 01:26:42,150 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-21 01:26:42,150 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-07-21 01:26:42,151 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-07-21 01:26:42,151 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-07-21 01:26:42,151 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-07-21 01:26:42,151 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-07-21 01:26:42,152 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-21 01:26:42,152 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-07-21 01:26:42,152 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-07-21 01:26:42,152 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-07-21 01:26:42,152 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-21 01:26:42,153 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-21 01:26:42,153 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-07-21 01:26:42,153 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-21 01:26:42,153 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-07-21 01:26:42,153 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 01:26:42,153 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-21 01:26:42,154 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-07-21 01:26:42,154 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 -> BIGGEST_EQUIVALENCE_CLASS
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
[2020-07-21 01:26:42,432 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-21 01:26:42,450 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-21 01:26:42,455 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-21 01:26:42,459 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-07-21 01:26:42,459 INFO  L275        PluginConnector]: CDTParser initialized
[2020-07-21 01:26:42,460 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label04.c
[2020-07-21 01:26:42,532 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50fcc5d32/0413632e95d4401a8a1e3fca526d29fa/FLAG265b43b22
[2020-07-21 01:26:43,082 INFO  L306              CDTParser]: Found 1 translation units.
[2020-07-21 01:26:43,083 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label04.c
[2020-07-21 01:26:43,094 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50fcc5d32/0413632e95d4401a8a1e3fca526d29fa/FLAG265b43b22
[2020-07-21 01:26:43,362 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50fcc5d32/0413632e95d4401a8a1e3fca526d29fa
[2020-07-21 01:26:43,372 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-21 01:26:43,376 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-21 01:26:43,377 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-21 01:26:43,378 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-21 01:26:43,381 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-21 01:26:43,382 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:26:43" (1/1) ...
[2020-07-21 01:26:43,385 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70ebe572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:43, skipping insertion in model container
[2020-07-21 01:26:43,385 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:26:43" (1/1) ...
[2020-07-21 01:26:43,392 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-07-21 01:26:43,437 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-07-21 01:26:43,992 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-21 01:26:43,998 INFO  L203         MainTranslator]: Completed pre-run
[2020-07-21 01:26:44,093 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-21 01:26:44,108 INFO  L208         MainTranslator]: Completed translation
[2020-07-21 01:26:44,109 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:44 WrapperNode
[2020-07-21 01:26:44,109 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-21 01:26:44,110 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-21 01:26:44,110 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-21 01:26:44,110 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-07-21 01:26:44,123 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:44" (1/1) ...
[2020-07-21 01:26:44,123 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:44" (1/1) ...
[2020-07-21 01:26:44,141 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:44" (1/1) ...
[2020-07-21 01:26:44,142 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:44" (1/1) ...
[2020-07-21 01:26:44,180 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:44" (1/1) ...
[2020-07-21 01:26:44,196 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:44" (1/1) ...
[2020-07-21 01:26:44,202 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:44" (1/1) ...
[2020-07-21 01:26:44,210 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-21 01:26:44,211 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-21 01:26:44,211 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-07-21 01:26:44,213 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-07-21 01:26:44,214 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:44" (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
[2020-07-21 01:26:44,306 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-21 01:26:44,307 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-21 01:26:44,307 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2020-07-21 01:26:44,307 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-07-21 01:26:44,307 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2020-07-21 01:26:44,308 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-21 01:26:44,308 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-21 01:26:44,308 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2020-07-21 01:26:44,309 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-07-21 01:26:44,309 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-21 01:26:44,310 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-21 01:26:45,581 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-21 01:26:45,582 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-07-21 01:26:45,588 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:26:45 BoogieIcfgContainer
[2020-07-21 01:26:45,588 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-21 01:26:45,590 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-21 01:26:45,590 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-07-21 01:26:45,594 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-07-21 01:26:45,594 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:26:43" (1/3) ...
[2020-07-21 01:26:45,595 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e104880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:26:45, skipping insertion in model container
[2020-07-21 01:26:45,595 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:26:44" (2/3) ...
[2020-07-21 01:26:45,596 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e104880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:26:45, skipping insertion in model container
[2020-07-21 01:26:45,596 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:26:45" (3/3) ...
[2020-07-21 01:26:45,598 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem10_label04.c
[2020-07-21 01:26:45,610 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-21 01:26:45,619 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-21 01:26:45,636 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-21 01:26:45,662 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-07-21 01:26:45,663 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-07-21 01:26:45,663 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-21 01:26:45,663 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-21 01:26:45,663 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-21 01:26:45,664 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-07-21 01:26:45,664 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-21 01:26:45,664 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-21 01:26:45,686 INFO  L276                IsEmpty]: Start isEmpty. Operand 215 states.
[2020-07-21 01:26:45,696 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 73
[2020-07-21 01:26:45,697 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 01:26:45,698 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 01:26:45,698 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 01:26:45,704 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 01:26:45,705 INFO  L82        PathProgramCache]: Analyzing trace with hash -460870769, now seen corresponding path program 1 times
[2020-07-21 01:26:45,714 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 01:26:45,714 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533320727]
[2020-07-21 01:26:45,715 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
[2020-07-21 01:26:45,902 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-21 01:26:45,902 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 01:26:45,906 INFO  L263         TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-07-21 01:26:45,929 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 01:26:46,033 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 01:26:46,034 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-21 01:26:46,035 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533320727]
[2020-07-21 01:26:46,036 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-21 01:26:46,036 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-21 01:26:46,037 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542334155]
[2020-07-21 01:26:46,045 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-21 01:26:46,045 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 01:26:46,059 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-21 01:26:46,060 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-21 01:26:46,062 INFO  L87              Difference]: Start difference. First operand 215 states. Second operand 3 states.
[2020-07-21 01:26:47,117 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 01:26:47,117 INFO  L93              Difference]: Finished difference Result 571 states and 989 transitions.
[2020-07-21 01:26:47,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-21 01:26:47,119 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 72
[2020-07-21 01:26:47,120 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 01:26:47,135 INFO  L225             Difference]: With dead ends: 571
[2020-07-21 01:26:47,135 INFO  L226             Difference]: Without dead ends: 294
[2020-07-21 01:26:47,142 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-21 01:26:47,161 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 294 states.
[2020-07-21 01:26:47,212 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294.
[2020-07-21 01:26:47,213 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 294 states.
[2020-07-21 01:26:47,215 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions.
[2020-07-21 01:26:47,218 INFO  L78                 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 72
[2020-07-21 01:26:47,219 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-21 01:26:47,219 INFO  L479      AbstractCegarLoop]: Abstraction has 294 states and 391 transitions.
[2020-07-21 01:26:47,219 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-21 01:26:47,219 INFO  L276                IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions.
[2020-07-21 01:26:47,232 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-07-21 01:26:47,232 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 01:26:47,233 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 01:26:47,433 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 01:26:47,434 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 01:26:47,435 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 01:26:47,436 INFO  L82        PathProgramCache]: Analyzing trace with hash -2048937230, now seen corresponding path program 1 times
[2020-07-21 01:26:47,436 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 01:26:47,437 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1855717133]
[2020-07-21 01:26:47,437 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
[2020-07-21 01:26:47,544 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-21 01:26:47,544 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 01:26:47,546 INFO  L263         TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core
[2020-07-21 01:26:47,552 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 01:26:47,644 INFO  L134       CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-07-21 01:26:47,644 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2020-07-21 01:26:47,749 INFO  L134       CoverageAnalysis]: Checked inductivity of 65 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-07-21 01:26:47,750 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1855717133]
[2020-07-21 01:26:47,750 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2020-07-21 01:26:47,751 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6
[2020-07-21 01:26:47,751 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729953134]
[2020-07-21 01:26:47,753 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-07-21 01:26:47,753 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 01:26:47,753 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-07-21 01:26:47,753 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2020-07-21 01:26:47,754 INFO  L87              Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 4 states.
[2020-07-21 01:26:48,518 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 01:26:48,519 INFO  L93              Difference]: Finished difference Result 586 states and 784 transitions.
[2020-07-21 01:26:48,519 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-07-21 01:26:48,520 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 142
[2020-07-21 01:26:48,521 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 01:26:48,525 INFO  L225             Difference]: With dead ends: 586
[2020-07-21 01:26:48,525 INFO  L226             Difference]: Without dead ends: 584
[2020-07-21 01:26:48,526 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2020-07-21 01:26:48,528 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 584 states.
[2020-07-21 01:26:48,557 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584.
[2020-07-21 01:26:48,557 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 584 states.
[2020-07-21 01:26:48,560 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 782 transitions.
[2020-07-21 01:26:48,560 INFO  L78                 Accepts]: Start accepts. Automaton has 584 states and 782 transitions. Word has length 142
[2020-07-21 01:26:48,561 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-21 01:26:48,561 INFO  L479      AbstractCegarLoop]: Abstraction has 584 states and 782 transitions.
[2020-07-21 01:26:48,566 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-07-21 01:26:48,566 INFO  L276                IsEmpty]: Start isEmpty. Operand 584 states and 782 transitions.
[2020-07-21 01:26:48,572 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 262
[2020-07-21 01:26:48,572 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 01:26:48,573 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 01:26:48,775 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 01:26:48,776 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 01:26:48,777 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 01:26:48,777 INFO  L82        PathProgramCache]: Analyzing trace with hash 173580762, now seen corresponding path program 1 times
[2020-07-21 01:26:48,778 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 01:26:48,779 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358135591]
[2020-07-21 01:26:48,780 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
[2020-07-21 01:26:48,921 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-21 01:26:48,922 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 01:26:48,923 INFO  L263         TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-21 01:26:48,931 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 01:26:48,980 INFO  L320       QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term
[2020-07-21 01:26:48,981 INFO  L501       QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-07-21 01:26:49,088 INFO  L134       CoverageAnalysis]: Checked inductivity of 200 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 01:26:49,088 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2020-07-21 01:26:49,174 INFO  L501       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-07-21 01:26:49,175 INFO  L501       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-07-21 01:26:49,177 INFO  L320       QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term
[2020-07-21 01:26:49,178 INFO  L501       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-07-21 01:26:49,364 INFO  L134       CoverageAnalysis]: Checked inductivity of 200 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 01:26:49,364 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358135591]
[2020-07-21 01:26:49,365 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-21 01:26:49,365 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6
[2020-07-21 01:26:49,365 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106921112]
[2020-07-21 01:26:49,366 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-07-21 01:26:49,367 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 01:26:49,367 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-07-21 01:26:49,367 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-07-21 01:26:49,367 INFO  L87              Difference]: Start difference. First operand 584 states and 782 transitions. Second operand 6 states.
[2020-07-21 01:26:50,422 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 01:26:50,422 INFO  L93              Difference]: Finished difference Result 1323 states and 1815 transitions.
[2020-07-21 01:26:50,423 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2020-07-21 01:26:50,423 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 261
[2020-07-21 01:26:50,424 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 01:26:50,428 INFO  L225             Difference]: With dead ends: 1323
[2020-07-21 01:26:50,429 INFO  L226             Difference]: Without dead ends: 745
[2020-07-21 01:26:50,430 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 516 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2020-07-21 01:26:50,431 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 745 states.
[2020-07-21 01:26:50,459 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 739.
[2020-07-21 01:26:50,460 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 739 states.
[2020-07-21 01:26:50,464 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1006 transitions.
[2020-07-21 01:26:50,464 INFO  L78                 Accepts]: Start accepts. Automaton has 739 states and 1006 transitions. Word has length 261
[2020-07-21 01:26:50,465 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-21 01:26:50,465 INFO  L479      AbstractCegarLoop]: Abstraction has 739 states and 1006 transitions.
[2020-07-21 01:26:50,465 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-07-21 01:26:50,465 INFO  L276                IsEmpty]: Start isEmpty. Operand 739 states and 1006 transitions.
[2020-07-21 01:26:50,470 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 268
[2020-07-21 01:26:50,471 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 01:26:50,471 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 01:26:50,684 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 01:26:50,685 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 01:26:50,686 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 01:26:50,686 INFO  L82        PathProgramCache]: Analyzing trace with hash -1604137490, now seen corresponding path program 1 times
[2020-07-21 01:26:50,686 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 01:26:50,687 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236421714]
[2020-07-21 01:26:50,687 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
[2020-07-21 01:26:50,810 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-21 01:26:50,810 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 01:26:50,811 INFO  L263         TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-21 01:26:50,816 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 01:26:50,963 INFO  L134       CoverageAnalysis]: Checked inductivity of 200 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 01:26:50,963 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2020-07-21 01:26:51,167 INFO  L134       CoverageAnalysis]: Checked inductivity of 200 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 01:26:51,167 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236421714]
[2020-07-21 01:26:51,168 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-21 01:26:51,168 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6
[2020-07-21 01:26:51,168 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487773913]
[2020-07-21 01:26:51,170 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-07-21 01:26:51,170 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 01:26:51,170 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-07-21 01:26:51,170 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-07-21 01:26:51,171 INFO  L87              Difference]: Start difference. First operand 739 states and 1006 transitions. Second operand 6 states.
[2020-07-21 01:26:52,257 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 01:26:52,257 INFO  L93              Difference]: Finished difference Result 1641 states and 2276 transitions.
[2020-07-21 01:26:52,258 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2020-07-21 01:26:52,258 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 267
[2020-07-21 01:26:52,259 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 01:26:52,259 INFO  L225             Difference]: With dead ends: 1641
[2020-07-21 01:26:52,259 INFO  L226             Difference]: Without dead ends: 0
[2020-07-21 01:26:52,268 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 530 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2020-07-21 01:26:52,268 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-07-21 01:26:52,268 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-07-21 01:26:52,268 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-07-21 01:26:52,268 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-07-21 01:26:52,269 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 267
[2020-07-21 01:26:52,269 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-21 01:26:52,269 INFO  L479      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-07-21 01:26:52,269 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-07-21 01:26:52,269 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-07-21 01:26:52,269 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-21 01:26:52,479 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 01:26:52,483 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-07-21 01:26:52,850 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initFINAL(line -1)  no Hoare annotation was computed.
[2020-07-21 01:26:52,850 INFO  L264        CegarLoopResult]: At program point  ULTIMATE.initENTRY(line -1)  the Hoare annotation is:  (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (or (< |old(~a19~0)| 7) (< 6 ~a19~0)))
[2020-07-21 01:26:52,851 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initEXIT(line -1)  no Hoare annotation was computed.
[2020-07-21 01:26:52,851 INFO  L268        CegarLoopResult]: For program point  L465(lines 465 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,851 INFO  L268        CegarLoopResult]: For program point  L201-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,851 INFO  L268        CegarLoopResult]: For program point  L168-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,851 INFO  L268        CegarLoopResult]: For program point  L135-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,851 INFO  L268        CegarLoopResult]: For program point  L102-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,851 INFO  L268        CegarLoopResult]: For program point  L69-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,852 INFO  L268        CegarLoopResult]: For program point  L36-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,852 INFO  L268        CegarLoopResult]: For program point  L499(lines 499 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,852 INFO  L268        CegarLoopResult]: For program point  L301(lines 301 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,852 INFO  L268        CegarLoopResult]: For program point  L202(line 202)  no Hoare annotation was computed.
[2020-07-21 01:26:52,852 INFO  L268        CegarLoopResult]: For program point  L169(line 169)  no Hoare annotation was computed.
[2020-07-21 01:26:52,852 INFO  L268        CegarLoopResult]: For program point  L136(line 136)  no Hoare annotation was computed.
[2020-07-21 01:26:52,852 INFO  L268        CegarLoopResult]: For program point  L103(line 103)  no Hoare annotation was computed.
[2020-07-21 01:26:52,853 INFO  L268        CegarLoopResult]: For program point  L70(line 70)  no Hoare annotation was computed.
[2020-07-21 01:26:52,853 INFO  L268        CegarLoopResult]: For program point  L37(line 37)  no Hoare annotation was computed.
[2020-07-21 01:26:52,853 INFO  L268        CegarLoopResult]: For program point  L335(lines 335 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,853 INFO  L268        CegarLoopResult]: For program point  L236(lines 236 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,853 INFO  L268        CegarLoopResult]: For program point  L534(lines 534 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,854 INFO  L268        CegarLoopResult]: For program point  L171-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,854 INFO  L268        CegarLoopResult]: For program point  L138-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,854 INFO  L268        CegarLoopResult]: For program point  L105-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,854 INFO  L268        CegarLoopResult]: For program point  L72-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,854 INFO  L268        CegarLoopResult]: For program point  L39-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,854 INFO  L268        CegarLoopResult]: For program point  L436(lines 436 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,854 INFO  L268        CegarLoopResult]: For program point  L403(lines 403 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,855 INFO  L268        CegarLoopResult]: For program point  L370(lines 370 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,855 INFO  L268        CegarLoopResult]: For program point  L271(lines 271 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,855 INFO  L268        CegarLoopResult]: For program point  L172(line 172)  no Hoare annotation was computed.
[2020-07-21 01:26:52,856 INFO  L268        CegarLoopResult]: For program point  L139(line 139)  no Hoare annotation was computed.
[2020-07-21 01:26:52,856 INFO  L268        CegarLoopResult]: For program point  L106(line 106)  no Hoare annotation was computed.
[2020-07-21 01:26:52,857 INFO  L268        CegarLoopResult]: For program point  L73(line 73)  no Hoare annotation was computed.
[2020-07-21 01:26:52,859 INFO  L268        CegarLoopResult]: For program point  L40(line 40)  no Hoare annotation was computed.
[2020-07-21 01:26:52,859 INFO  L268        CegarLoopResult]: For program point  L569(lines 569 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,860 INFO  L268        CegarLoopResult]: For program point  L239(lines 239 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,860 INFO  L268        CegarLoopResult]: For program point  L504(lines 504 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,860 INFO  L268        CegarLoopResult]: For program point  L471(lines 471 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,860 INFO  L268        CegarLoopResult]: For program point  calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 202)  no Hoare annotation was computed.
[2020-07-21 01:26:52,862 INFO  L268        CegarLoopResult]: For program point  L306(lines 306 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,862 INFO  L268        CegarLoopResult]: For program point  L174-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,863 INFO  L268        CegarLoopResult]: For program point  L141-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,863 INFO  L268        CegarLoopResult]: For program point  L108-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,863 INFO  L268        CegarLoopResult]: For program point  L75-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,863 INFO  L268        CegarLoopResult]: For program point  L42-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,863 INFO  L268        CegarLoopResult]: For program point  L340(lines 340 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,863 INFO  L268        CegarLoopResult]: For program point  L175(line 175)  no Hoare annotation was computed.
[2020-07-21 01:26:52,863 INFO  L268        CegarLoopResult]: For program point  L142(line 142)  no Hoare annotation was computed.
[2020-07-21 01:26:52,863 INFO  L268        CegarLoopResult]: For program point  L109(line 109)  no Hoare annotation was computed.
[2020-07-21 01:26:52,864 INFO  L268        CegarLoopResult]: For program point  L76(line 76)  no Hoare annotation was computed.
[2020-07-21 01:26:52,864 INFO  L268        CegarLoopResult]: For program point  L43(line 43)  no Hoare annotation was computed.
[2020-07-21 01:26:52,864 INFO  L268        CegarLoopResult]: For program point  L540(lines 540 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,864 INFO  L268        CegarLoopResult]: For program point  L408(lines 408 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,864 INFO  L268        CegarLoopResult]: For program point  L375(lines 375 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,864 INFO  L268        CegarLoopResult]: For program point  L210(lines 210 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,864 INFO  L268        CegarLoopResult]: For program point  L177-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,864 INFO  L268        CegarLoopResult]: For program point  L144-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,865 INFO  L268        CegarLoopResult]: For program point  L111-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,865 INFO  L268        CegarLoopResult]: For program point  L78-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,865 INFO  L268        CegarLoopResult]: For program point  L45-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,865 INFO  L268        CegarLoopResult]: For program point  L442(lines 442 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,865 INFO  L268        CegarLoopResult]: For program point  L277(lines 277 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,868 INFO  L268        CegarLoopResult]: For program point  L244(lines 244 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,868 INFO  L268        CegarLoopResult]: For program point  L178(line 178)  no Hoare annotation was computed.
[2020-07-21 01:26:52,869 INFO  L268        CegarLoopResult]: For program point  L145(line 145)  no Hoare annotation was computed.
[2020-07-21 01:26:52,869 INFO  L268        CegarLoopResult]: For program point  L112(line 112)  no Hoare annotation was computed.
[2020-07-21 01:26:52,869 INFO  L268        CegarLoopResult]: For program point  L79(line 79)  no Hoare annotation was computed.
[2020-07-21 01:26:52,869 INFO  L268        CegarLoopResult]: For program point  L46(line 46)  no Hoare annotation was computed.
[2020-07-21 01:26:52,869 INFO  L268        CegarLoopResult]: For program point  L509(lines 509 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,869 INFO  L268        CegarLoopResult]: For program point  L476(lines 476 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,869 INFO  L268        CegarLoopResult]: For program point  L378(lines 378 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,869 INFO  L268        CegarLoopResult]: For program point  L345(lines 345 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,870 INFO  L268        CegarLoopResult]: For program point  L312(lines 312 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,870 INFO  L268        CegarLoopResult]: For program point  L180-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,870 INFO  L268        CegarLoopResult]: For program point  L147-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,870 INFO  L268        CegarLoopResult]: For program point  L114-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,870 INFO  L268        CegarLoopResult]: For program point  L81-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,870 INFO  L268        CegarLoopResult]: For program point  L48-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,870 INFO  L268        CegarLoopResult]: For program point  L181(line 181)  no Hoare annotation was computed.
[2020-07-21 01:26:52,870 INFO  L268        CegarLoopResult]: For program point  L148(line 148)  no Hoare annotation was computed.
[2020-07-21 01:26:52,871 INFO  L268        CegarLoopResult]: For program point  L115(line 115)  no Hoare annotation was computed.
[2020-07-21 01:26:52,871 INFO  L268        CegarLoopResult]: For program point  L82(line 82)  no Hoare annotation was computed.
[2020-07-21 01:26:52,871 INFO  L268        CegarLoopResult]: For program point  L49(line 49)  no Hoare annotation was computed.
[2020-07-21 01:26:52,871 INFO  L268        CegarLoopResult]: For program point  L545(lines 545 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,871 INFO  L268        CegarLoopResult]: For program point  L215(lines 215 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,871 INFO  L268        CegarLoopResult]: For program point  L414(lines 414 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,871 INFO  L268        CegarLoopResult]: For program point  L249(lines 249 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,871 INFO  L268        CegarLoopResult]: For program point  L183-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,872 INFO  L268        CegarLoopResult]: For program point  L150-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,872 INFO  L268        CegarLoopResult]: For program point  L117-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,872 INFO  L268        CegarLoopResult]: For program point  L84-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,872 INFO  L268        CegarLoopResult]: For program point  L51-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,872 INFO  L268        CegarLoopResult]: For program point  calculate_outputFINAL(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,872 INFO  L268        CegarLoopResult]: For program point  calculate_outputEXIT(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,872 INFO  L268        CegarLoopResult]: For program point  L514(lines 514 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,872 INFO  L268        CegarLoopResult]: For program point  L481(lines 481 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,873 INFO  L268        CegarLoopResult]: For program point  L448(lines 448 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,873 INFO  L268        CegarLoopResult]: For program point  L283(lines 283 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,873 INFO  L268        CegarLoopResult]: For program point  L184(line 184)  no Hoare annotation was computed.
[2020-07-21 01:26:52,873 INFO  L268        CegarLoopResult]: For program point  L151(line 151)  no Hoare annotation was computed.
[2020-07-21 01:26:52,873 INFO  L268        CegarLoopResult]: For program point  L118(line 118)  no Hoare annotation was computed.
[2020-07-21 01:26:52,873 INFO  L268        CegarLoopResult]: For program point  L85(line 85)  no Hoare annotation was computed.
[2020-07-21 01:26:52,873 INFO  L268        CegarLoopResult]: For program point  L52(line 52)  no Hoare annotation was computed.
[2020-07-21 01:26:52,873 INFO  L268        CegarLoopResult]: For program point  L548(lines 548 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,873 INFO  L268        CegarLoopResult]: For program point  L383(lines 383 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,873 INFO  L268        CegarLoopResult]: For program point  L317(lines 317 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,873 INFO  L268        CegarLoopResult]: For program point  L351(lines 351 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,874 INFO  L268        CegarLoopResult]: For program point  L186-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,874 INFO  L268        CegarLoopResult]: For program point  L153-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,874 INFO  L268        CegarLoopResult]: For program point  L120-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,874 INFO  L268        CegarLoopResult]: For program point  L87-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,874 INFO  L268        CegarLoopResult]: For program point  L21(lines 21 23)  no Hoare annotation was computed.
[2020-07-21 01:26:52,874 INFO  L268        CegarLoopResult]: For program point  L54-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,874 INFO  L268        CegarLoopResult]: For program point  L21-2(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,874 INFO  L268        CegarLoopResult]: For program point  L517(lines 517 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,875 INFO  L268        CegarLoopResult]: For program point  L286(lines 286 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,875 INFO  L268        CegarLoopResult]: For program point  L220(lines 220 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,875 INFO  L268        CegarLoopResult]: For program point  L187(line 187)  no Hoare annotation was computed.
[2020-07-21 01:26:52,875 INFO  L268        CegarLoopResult]: For program point  L154(line 154)  no Hoare annotation was computed.
[2020-07-21 01:26:52,875 INFO  L268        CegarLoopResult]: For program point  L121(line 121)  no Hoare annotation was computed.
[2020-07-21 01:26:52,875 INFO  L268        CegarLoopResult]: For program point  L88(line 88)  no Hoare annotation was computed.
[2020-07-21 01:26:52,875 INFO  L268        CegarLoopResult]: For program point  L55(line 55)  no Hoare annotation was computed.
[2020-07-21 01:26:52,875 INFO  L268        CegarLoopResult]: For program point  L22(line 22)  no Hoare annotation was computed.
[2020-07-21 01:26:52,875 INFO  L268        CegarLoopResult]: For program point  L419(lines 419 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,875 INFO  L268        CegarLoopResult]: For program point  L320(lines 320 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,876 INFO  L268        CegarLoopResult]: For program point  L254(lines 254 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,876 INFO  L268        CegarLoopResult]: For program point  L354(lines 354 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,876 INFO  L268        CegarLoopResult]: For program point  L189-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,876 INFO  L268        CegarLoopResult]: For program point  L156-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,876 INFO  L268        CegarLoopResult]: For program point  L123-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,876 INFO  L268        CegarLoopResult]: For program point  L90-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,876 INFO  L268        CegarLoopResult]: For program point  L57-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,876 INFO  L268        CegarLoopResult]: For program point  L24-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,877 INFO  L268        CegarLoopResult]: For program point  L487(lines 487 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,877 INFO  L268        CegarLoopResult]: For program point  L454(lines 454 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,877 INFO  L268        CegarLoopResult]: For program point  L388(lines 388 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,877 INFO  L268        CegarLoopResult]: For program point  L190(line 190)  no Hoare annotation was computed.
[2020-07-21 01:26:52,877 INFO  L268        CegarLoopResult]: For program point  L157(line 157)  no Hoare annotation was computed.
[2020-07-21 01:26:52,877 INFO  L268        CegarLoopResult]: For program point  L124(line 124)  no Hoare annotation was computed.
[2020-07-21 01:26:52,877 INFO  L268        CegarLoopResult]: For program point  L91(line 91)  no Hoare annotation was computed.
[2020-07-21 01:26:52,877 INFO  L268        CegarLoopResult]: For program point  L58(line 58)  no Hoare annotation was computed.
[2020-07-21 01:26:52,877 INFO  L268        CegarLoopResult]: For program point  L25(line 25)  no Hoare annotation was computed.
[2020-07-21 01:26:52,877 INFO  L268        CegarLoopResult]: For program point  L554(lines 554 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,877 INFO  L268        CegarLoopResult]: For program point  L323(lines 323 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,878 INFO  L264        CegarLoopResult]: At program point  calculate_outputENTRY(lines 20 574)  the Hoare annotation is:  (let ((.cse1 (<= ~a10~0 |old(~a10~0)|)) (.cse2 (<= |old(~a10~0)| ~a10~0))) (let ((.cse0 (and .cse1 .cse2))) (and (or .cse0 (not (<= |old(~a10~0)| 0))) (or .cse0 (not (<= 2 |old(~a10~0)|))) (or (and .cse1 .cse2 (< 6 ~a19~0)) (not (< 6 |old(~a19~0)|))))))
[2020-07-21 01:26:52,878 INFO  L268        CegarLoopResult]: For program point  L357(lines 357 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,878 INFO  L268        CegarLoopResult]: For program point  L291(lines 291 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,878 INFO  L268        CegarLoopResult]: For program point  L225(lines 225 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,878 INFO  L268        CegarLoopResult]: For program point  L192-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,878 INFO  L268        CegarLoopResult]: For program point  L159-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,878 INFO  L268        CegarLoopResult]: For program point  L126-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,878 INFO  L268        CegarLoopResult]: For program point  L93-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,879 INFO  L268        CegarLoopResult]: For program point  L60-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,879 INFO  L268        CegarLoopResult]: For program point  L27-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,879 INFO  L268        CegarLoopResult]: For program point  L523(lines 523 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,879 INFO  L268        CegarLoopResult]: For program point  L193(line 193)  no Hoare annotation was computed.
[2020-07-21 01:26:52,879 INFO  L268        CegarLoopResult]: For program point  L160(line 160)  no Hoare annotation was computed.
[2020-07-21 01:26:52,879 INFO  L268        CegarLoopResult]: For program point  L127(line 127)  no Hoare annotation was computed.
[2020-07-21 01:26:52,879 INFO  L268        CegarLoopResult]: For program point  L94(line 94)  no Hoare annotation was computed.
[2020-07-21 01:26:52,879 INFO  L268        CegarLoopResult]: For program point  L61(line 61)  no Hoare annotation was computed.
[2020-07-21 01:26:52,879 INFO  L268        CegarLoopResult]: For program point  L28(line 28)  no Hoare annotation was computed.
[2020-07-21 01:26:52,880 INFO  L268        CegarLoopResult]: For program point  L557(lines 557 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,880 INFO  L268        CegarLoopResult]: For program point  L425(lines 425 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,880 INFO  L268        CegarLoopResult]: For program point  L326(lines 326 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,880 INFO  L268        CegarLoopResult]: For program point  L260(lines 260 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,880 INFO  L268        CegarLoopResult]: For program point  L393(lines 393 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,880 INFO  L268        CegarLoopResult]: For program point  L360(lines 360 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,881 INFO  L268        CegarLoopResult]: For program point  L195-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,881 INFO  L268        CegarLoopResult]: For program point  L162-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,881 INFO  L268        CegarLoopResult]: For program point  L129-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,881 INFO  L268        CegarLoopResult]: For program point  L96-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,881 INFO  L268        CegarLoopResult]: For program point  L63-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,881 INFO  L268        CegarLoopResult]: For program point  L30-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,881 INFO  L268        CegarLoopResult]: For program point  L526(lines 526 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,882 INFO  L268        CegarLoopResult]: For program point  L493(lines 493 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,882 INFO  L268        CegarLoopResult]: For program point  L460(lines 460 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,882 INFO  L268        CegarLoopResult]: For program point  L196(line 196)  no Hoare annotation was computed.
[2020-07-21 01:26:52,882 INFO  L268        CegarLoopResult]: For program point  L163(line 163)  no Hoare annotation was computed.
[2020-07-21 01:26:52,882 INFO  L268        CegarLoopResult]: For program point  L130(line 130)  no Hoare annotation was computed.
[2020-07-21 01:26:52,882 INFO  L268        CegarLoopResult]: For program point  L97(line 97)  no Hoare annotation was computed.
[2020-07-21 01:26:52,882 INFO  L268        CegarLoopResult]: For program point  L64(line 64)  no Hoare annotation was computed.
[2020-07-21 01:26:52,883 INFO  L268        CegarLoopResult]: For program point  L31(line 31)  no Hoare annotation was computed.
[2020-07-21 01:26:52,883 INFO  L268        CegarLoopResult]: For program point  L329(lines 329 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,883 INFO  L268        CegarLoopResult]: For program point  L296(lines 296 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,883 INFO  L268        CegarLoopResult]: For program point  L231(lines 231 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,883 INFO  L268        CegarLoopResult]: For program point  L198-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,884 INFO  L268        CegarLoopResult]: For program point  L165-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,884 INFO  L268        CegarLoopResult]: For program point  L132-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,884 INFO  L268        CegarLoopResult]: For program point  L99-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,884 INFO  L268        CegarLoopResult]: For program point  L66-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,884 INFO  L268        CegarLoopResult]: For program point  L33-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-21 01:26:52,884 INFO  L268        CegarLoopResult]: For program point  L529(lines 529 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,884 INFO  L268        CegarLoopResult]: For program point  L430(lines 430 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,885 INFO  L268        CegarLoopResult]: For program point  L265(lines 265 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,885 INFO  L268        CegarLoopResult]: For program point  L199(line 199)  no Hoare annotation was computed.
[2020-07-21 01:26:52,885 INFO  L268        CegarLoopResult]: For program point  L166(line 166)  no Hoare annotation was computed.
[2020-07-21 01:26:52,885 INFO  L268        CegarLoopResult]: For program point  L133(line 133)  no Hoare annotation was computed.
[2020-07-21 01:26:52,885 INFO  L268        CegarLoopResult]: For program point  L100(line 100)  no Hoare annotation was computed.
[2020-07-21 01:26:52,885 INFO  L268        CegarLoopResult]: For program point  L67(line 67)  no Hoare annotation was computed.
[2020-07-21 01:26:52,886 INFO  L268        CegarLoopResult]: For program point  L34(line 34)  no Hoare annotation was computed.
[2020-07-21 01:26:52,886 INFO  L268        CegarLoopResult]: For program point  L563(lines 563 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,886 INFO  L268        CegarLoopResult]: For program point  L398(lines 398 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,886 INFO  L268        CegarLoopResult]: For program point  L365(lines 365 572)  no Hoare annotation was computed.
[2020-07-21 01:26:52,886 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startEXIT(line -1)  no Hoare annotation was computed.
[2020-07-21 01:26:52,886 INFO  L264        CegarLoopResult]: At program point  L-1(line -1)  the Hoare annotation is:  (and (<= ~a10~0 0) (< 6 ~a19~0))
[2020-07-21 01:26:52,887 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.startENTRY(line -1)  the Hoare annotation is:  true
[2020-07-21 01:26:52,887 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startFINAL(line -1)  no Hoare annotation was computed.
[2020-07-21 01:26:52,887 INFO  L264        CegarLoopResult]: At program point  mainENTRY(lines 576 592)  the Hoare annotation is:  (or (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (< 6 ~a19~0)) (not (< 6 |old(~a19~0)|)) (not (<= |old(~a10~0)| 0)))
[2020-07-21 01:26:52,887 INFO  L268        CegarLoopResult]: For program point  mainEXIT(lines 576 592)  no Hoare annotation was computed.
[2020-07-21 01:26:52,887 INFO  L264        CegarLoopResult]: At program point  L590(line 590)  the Hoare annotation is:  (or (<= ~a10~0 0) (not (< 6 |old(~a19~0)|)) (not (<= |old(~a10~0)| 0)) (< 6 ~a19~0) (<= 2 ~a10~0))
[2020-07-21 01:26:52,887 INFO  L268        CegarLoopResult]: For program point  L590-1(line 590)  no Hoare annotation was computed.
[2020-07-21 01:26:52,888 INFO  L268        CegarLoopResult]: For program point  L587(line 587)  no Hoare annotation was computed.
[2020-07-21 01:26:52,888 INFO  L264        CegarLoopResult]: At program point  L582-2(lines 582 591)  the Hoare annotation is:  (or (<= ~a10~0 0) (not (< 6 |old(~a19~0)|)) (not (<= |old(~a10~0)| 0)) (< 6 ~a19~0) (<= 2 ~a10~0))
[2020-07-21 01:26:52,888 INFO  L268        CegarLoopResult]: For program point  L582-3(lines 576 592)  no Hoare annotation was computed.
[2020-07-21 01:26:52,906 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:26:52 BoogieIcfgContainer
[2020-07-21 01:26:52,906 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-21 01:26:52,909 INFO  L168              Benchmark]: Toolchain (without parser) took 9533.82 ms. Allocated memory was 146.8 MB in the beginning and 367.0 MB in the end (delta: 220.2 MB). Free memory was 103.1 MB in the beginning and 117.5 MB in the end (delta: -14.4 MB). Peak memory consumption was 205.8 MB. Max. memory is 7.1 GB.
[2020-07-21 01:26:52,910 INFO  L168              Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB.
[2020-07-21 01:26:52,911 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 732.19 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 102.9 MB in the beginning and 172.5 MB in the end (delta: -69.6 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB.
[2020-07-21 01:26:52,912 INFO  L168              Benchmark]: Boogie Preprocessor took 100.59 ms. Allocated memory is still 206.6 MB. Free memory was 172.5 MB in the beginning and 167.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB.
[2020-07-21 01:26:52,913 INFO  L168              Benchmark]: RCFGBuilder took 1377.52 ms. Allocated memory was 206.6 MB in the beginning and 238.0 MB in the end (delta: 31.5 MB). Free memory was 167.8 MB in the beginning and 180.2 MB in the end (delta: -12.4 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB.
[2020-07-21 01:26:52,914 INFO  L168              Benchmark]: TraceAbstraction took 7316.39 ms. Allocated memory was 238.0 MB in the beginning and 367.0 MB in the end (delta: 129.0 MB). Free memory was 180.2 MB in the beginning and 117.5 MB in the end (delta: 62.7 MB). Peak memory consumption was 191.7 MB. Max. memory is 7.1 GB.
[2020-07-21 01:26:52,919 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.48 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 732.19 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 102.9 MB in the beginning and 172.5 MB in the end (delta: -69.6 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 100.59 ms. Allocated memory is still 206.6 MB. Free memory was 172.5 MB in the beginning and 167.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1377.52 ms. Allocated memory was 206.6 MB in the beginning and 238.0 MB in the end (delta: 31.5 MB). Free memory was 167.8 MB in the beginning and 180.2 MB in the end (delta: -12.4 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 7316.39 ms. Allocated memory was 238.0 MB in the beginning and 367.0 MB in the end (delta: 129.0 MB). Free memory was 180.2 MB in the beginning and 117.5 MB in the end (delta: 62.7 MB). Peak memory consumption was 191.7 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 202]: call of __VERIFIER_error() unreachable
    For all program executions holds that call of __VERIFIER_error() unreachable at this location
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 582]: Loop Invariant
    Derived loop invariant: (((a10 <= 0 || !(6 < \old(a19))) || !(\old(a10) <= 0)) || 6 < a19) || 2 <= a10
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.8s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 178 SDtfs, 984 SDslu, 91 SDs, 0 SdLazy, 2233 SolverSat, 659 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1418 GetRequests, 1395 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=739occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 25 PreInvPairs, 43 NumberOfFragments, 117 HoareAnnotationTreeSize, 25 FomulaSimplifications, 162 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 283 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 742 NumberOfCodeBlocks, 613 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1405 ConstructedInterpolants, 0 QuantifiedInterpolants, 1128317 SizeOfPredicates, 7 NumberOfNonLiveVariables, 1165 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 860/930 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...