/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 DAGSIZE --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/Problem01_label10.c


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


This is Ultimate 0.1.25-d623d84
[2020-07-20 21:59:41,352 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-07-20 21:59:41,355 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-20 21:59:41,373 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-20 21:59:41,374 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-20 21:59:41,376 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-20 21:59:41,377 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-20 21:59:41,387 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-20 21:59:41,392 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-20 21:59:41,395 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-07-20 21:59:41,398 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-20 21:59:41,398 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-20 21:59:41,400 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-20 21:59:41,402 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-20 21:59:41,404 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-20 21:59:41,405 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-20 21:59:41,406 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-20 21:59:41,407 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-20 21:59:41,412 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-20 21:59:41,418 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-20 21:59:41,421 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-20 21:59:41,422 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-07-20 21:59:41,424 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-20 21:59:41,426 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-20 21:59:41,427 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-20 21:59:41,427 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-20 21:59:41,430 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-20 21:59:41,430 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-20 21:59:41,431 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-20 21:59:41,431 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-20 21:59:41,432 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-20 21:59:41,433 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-07-20 21:59:41,433 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-07-20 21:59:41,435 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-20 21:59:41,435 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-20 21:59:41,435 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-07-20 21:59:41,436 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-07-20 21:59:41,438 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-07-20 21:59:41,439 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 21:59:41,470 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-07-20 21:59:41,470 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-20 21:59:41,471 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-20 21:59:41,471 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-07-20 21:59:41,472 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-07-20 21:59:41,472 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-20 21:59:41,472 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-07-20 21:59:41,472 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-07-20 21:59:41,477 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-07-20 21:59:41,478 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-07-20 21:59:41,478 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-07-20 21:59:41,478 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-20 21:59:41,478 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-07-20 21:59:41,478 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-07-20 21:59:41,479 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-07-20 21:59:41,479 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-07-20 21:59:41,479 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-07-20 21:59:41,479 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-20 21:59:41,479 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-07-20 21:59:41,480 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-07-20 21:59:41,480 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-07-20 21:59:41,480 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 21:59:41,480 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-20 21:59:41,480 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-07-20 21:59:41,481 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-20 21:59:41,481 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-07-20 21:59:41,481 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 21:59:41,481 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-20 21:59:41,482 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-07-20 21:59:41,482 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 -> DAGSIZE
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 21:59:41,769 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-20 21:59:41,781 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-20 21:59:41,785 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-20 21:59:41,786 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-07-20 21:59:41,787 INFO  L275        PluginConnector]: CDTParser initialized
[2020-07-20 21:59:41,788 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label10.c
[2020-07-20 21:59:41,864 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f5db61a9/6d78931376514702bd82b62c9a0fc0ab/FLAGdfee686a0
[2020-07-20 21:59:42,442 INFO  L306              CDTParser]: Found 1 translation units.
[2020-07-20 21:59:42,442 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label10.c
[2020-07-20 21:59:42,455 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f5db61a9/6d78931376514702bd82b62c9a0fc0ab/FLAGdfee686a0
[2020-07-20 21:59:42,718 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f5db61a9/6d78931376514702bd82b62c9a0fc0ab
[2020-07-20 21:59:42,729 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-20 21:59:42,732 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-20 21:59:42,733 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-20 21:59:42,733 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-20 21:59:42,738 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-20 21:59:42,739 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:59:42" (1/1) ...
[2020-07-20 21:59:42,742 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65940f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:42, skipping insertion in model container
[2020-07-20 21:59:42,742 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:59:42" (1/1) ...
[2020-07-20 21:59:42,751 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-07-20 21:59:42,806 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-07-20 21:59:43,220 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 21:59:43,225 INFO  L203         MainTranslator]: Completed pre-run
[2020-07-20 21:59:43,485 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 21:59:43,509 INFO  L208         MainTranslator]: Completed translation
[2020-07-20 21:59:43,510 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:43 WrapperNode
[2020-07-20 21:59:43,510 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-20 21:59:43,511 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-20 21:59:43,511 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-20 21:59:43,512 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-07-20 21:59:43,531 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:43" (1/1) ...
[2020-07-20 21:59:43,533 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:43" (1/1) ...
[2020-07-20 21:59:43,578 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:43" (1/1) ...
[2020-07-20 21:59:43,578 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:43" (1/1) ...
[2020-07-20 21:59:43,641 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:43" (1/1) ...
[2020-07-20 21:59:43,664 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:43" (1/1) ...
[2020-07-20 21:59:43,674 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:43" (1/1) ...
[2020-07-20 21:59:43,687 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-20 21:59:43,689 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-20 21:59:43,689 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-07-20 21:59:43,689 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-07-20 21:59:43,693 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:43" (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 21:59:43,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-20 21:59:43,756 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-20 21:59:43,756 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2020-07-20 21:59:43,756 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-07-20 21:59:43,756 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2020-07-20 21:59:43,756 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-20 21:59:43,756 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-20 21:59:43,757 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2020-07-20 21:59:43,757 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-07-20 21:59:43,757 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-20 21:59:43,757 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-20 21:59:45,002 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-20 21:59:45,003 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-07-20 21:59:45,009 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:59:45 BoogieIcfgContainer
[2020-07-20 21:59:45,009 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-20 21:59:45,011 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-20 21:59:45,011 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-07-20 21:59:45,014 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-07-20 21:59:45,015 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 09:59:42" (1/3) ...
[2020-07-20 21:59:45,015 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187b4613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:59:45, skipping insertion in model container
[2020-07-20 21:59:45,016 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:59:43" (2/3) ...
[2020-07-20 21:59:45,016 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187b4613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:59:45, skipping insertion in model container
[2020-07-20 21:59:45,016 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:59:45" (3/3) ...
[2020-07-20 21:59:45,018 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem01_label10.c
[2020-07-20 21:59:45,029 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-20 21:59:45,038 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-20 21:59:45,053 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-20 21:59:45,079 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-07-20 21:59:45,079 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-07-20 21:59:45,079 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-20 21:59:45,079 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-20 21:59:45,080 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-20 21:59:45,080 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-07-20 21:59:45,080 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-20 21:59:45,080 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-20 21:59:45,103 INFO  L276                IsEmpty]: Start isEmpty. Operand 207 states.
[2020-07-20 21:59:45,116 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 117
[2020-07-20 21:59:45,117 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 21:59:45,118 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, 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]
[2020-07-20 21:59:45,118 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 21:59:45,124 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 21:59:45,125 INFO  L82        PathProgramCache]: Analyzing trace with hash 262180542, now seen corresponding path program 1 times
[2020-07-20 21:59:45,134 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 21:59:45,135 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2032323517]
[2020-07-20 21:59:45,135 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 21:59:45,334 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 21:59:45,334 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 21:59:45,338 INFO  L263         TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-07-20 21:59:45,348 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 21:59:45,456 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 21:59:45,456 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 21:59:45,457 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2032323517]
[2020-07-20 21:59:45,458 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 21:59:45,459 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 21:59:45,460 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518781089]
[2020-07-20 21:59:45,466 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 21:59:45,467 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 21:59:45,483 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 21:59:45,484 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 21:59:45,487 INFO  L87              Difference]: Start difference. First operand 207 states. Second operand 3 states.
[2020-07-20 21:59:46,438 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 21:59:46,439 INFO  L93              Difference]: Finished difference Result 572 states and 963 transitions.
[2020-07-20 21:59:46,439 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 21:59:46,441 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 116
[2020-07-20 21:59:46,442 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 21:59:46,457 INFO  L225             Difference]: With dead ends: 572
[2020-07-20 21:59:46,458 INFO  L226             Difference]: Without dead ends: 278
[2020-07-20 21:59:46,464 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 21:59:46,484 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 278 states.
[2020-07-20 21:59:46,527 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278.
[2020-07-20 21:59:46,529 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 278 states.
[2020-07-20 21:59:46,531 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions.
[2020-07-20 21:59:46,533 INFO  L78                 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 116
[2020-07-20 21:59:46,534 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 21:59:46,534 INFO  L479      AbstractCegarLoop]: Abstraction has 278 states and 394 transitions.
[2020-07-20 21:59:46,534 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 21:59:46,534 INFO  L276                IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions.
[2020-07-20 21:59:46,538 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 127
[2020-07-20 21:59:46,539 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 21:59:46,539 INFO  L422         BasicCegarLoop]: trace histogram [2, 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, 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]
[2020-07-20 21:59:46,753 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 21:59:46,753 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 21:59:46,753 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 21:59:46,754 INFO  L82        PathProgramCache]: Analyzing trace with hash -1657089323, now seen corresponding path program 1 times
[2020-07-20 21:59:46,755 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 21:59:46,755 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244191957]
[2020-07-20 21:59:46,756 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 21:59:46,897 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 21:59:46,898 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 21:59:46,900 INFO  L263         TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 21:59:46,915 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 21:59:46,976 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 21:59:46,976 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 21:59:46,977 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244191957]
[2020-07-20 21:59:46,977 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 21:59:46,977 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 21:59:46,977 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734719555]
[2020-07-20 21:59:46,979 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 21:59:46,979 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 21:59:46,980 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 21:59:46,980 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 21:59:46,980 INFO  L87              Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 3 states.
[2020-07-20 21:59:47,544 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 21:59:47,545 INFO  L93              Difference]: Finished difference Result 820 states and 1181 transitions.
[2020-07-20 21:59:47,547 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 21:59:47,547 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 126
[2020-07-20 21:59:47,548 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 21:59:47,558 INFO  L225             Difference]: With dead ends: 820
[2020-07-20 21:59:47,558 INFO  L226             Difference]: Without dead ends: 548
[2020-07-20 21:59:47,560 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 21:59:47,561 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 548 states.
[2020-07-20 21:59:47,602 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548.
[2020-07-20 21:59:47,602 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 548 states.
[2020-07-20 21:59:47,605 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 734 transitions.
[2020-07-20 21:59:47,605 INFO  L78                 Accepts]: Start accepts. Automaton has 548 states and 734 transitions. Word has length 126
[2020-07-20 21:59:47,606 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 21:59:47,606 INFO  L479      AbstractCegarLoop]: Abstraction has 548 states and 734 transitions.
[2020-07-20 21:59:47,606 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 21:59:47,607 INFO  L276                IsEmpty]: Start isEmpty. Operand 548 states and 734 transitions.
[2020-07-20 21:59:47,611 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2020-07-20 21:59:47,611 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 21:59:47,611 INFO  L422         BasicCegarLoop]: trace histogram [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, 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, 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 21:59:47,824 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 21:59:47,825 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 21:59:47,826 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 21:59:47,826 INFO  L82        PathProgramCache]: Analyzing trace with hash 1783497359, now seen corresponding path program 1 times
[2020-07-20 21:59:47,827 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 21:59:47,828 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113827226]
[2020-07-20 21:59:47,829 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 21:59:47,996 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 21:59:47,998 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 21:59:48,000 INFO  L263         TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 21:59:48,012 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 21:59:48,085 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 21:59:48,086 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 21:59:48,086 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113827226]
[2020-07-20 21:59:48,086 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 21:59:48,087 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 21:59:48,089 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594571959]
[2020-07-20 21:59:48,090 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 21:59:48,091 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 21:59:48,091 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 21:59:48,092 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 21:59:48,100 INFO  L87              Difference]: Start difference. First operand 548 states and 734 transitions. Second operand 3 states.
[2020-07-20 21:59:48,628 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 21:59:48,629 INFO  L93              Difference]: Finished difference Result 1360 states and 1853 transitions.
[2020-07-20 21:59:48,629 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 21:59:48,629 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 131
[2020-07-20 21:59:48,630 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 21:59:48,635 INFO  L225             Difference]: With dead ends: 1360
[2020-07-20 21:59:48,636 INFO  L226             Difference]: Without dead ends: 818
[2020-07-20 21:59:48,637 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 21:59:48,639 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 818 states.
[2020-07-20 21:59:48,681 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818.
[2020-07-20 21:59:48,682 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 818 states.
[2020-07-20 21:59:48,688 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1060 transitions.
[2020-07-20 21:59:48,688 INFO  L78                 Accepts]: Start accepts. Automaton has 818 states and 1060 transitions. Word has length 131
[2020-07-20 21:59:48,689 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 21:59:48,689 INFO  L479      AbstractCegarLoop]: Abstraction has 818 states and 1060 transitions.
[2020-07-20 21:59:48,689 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 21:59:48,689 INFO  L276                IsEmpty]: Start isEmpty. Operand 818 states and 1060 transitions.
[2020-07-20 21:59:48,695 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-07-20 21:59:48,695 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 21:59:48,696 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 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]
[2020-07-20 21:59:48,909 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 21:59:48,910 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 21:59:48,911 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 21:59:48,911 INFO  L82        PathProgramCache]: Analyzing trace with hash 750316320, now seen corresponding path program 1 times
[2020-07-20 21:59:48,911 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 21:59:48,912 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1342062184]
[2020-07-20 21:59:48,912 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 21:59:49,056 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 21:59:49,057 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 21:59:49,058 INFO  L263         TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 21:59:49,061 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 21:59:49,102 INFO  L134       CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 21:59:49,103 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 21:59:49,188 INFO  L134       CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 21:59:49,188 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1342062184]
[2020-07-20 21:59:49,189 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 21:59:49,189 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2020-07-20 21:59:49,189 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44478938]
[2020-07-20 21:59:49,190 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-07-20 21:59:49,190 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 21:59:49,191 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-07-20 21:59:49,191 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2020-07-20 21:59:49,191 INFO  L87              Difference]: Start difference. First operand 818 states and 1060 transitions. Second operand 8 states.
[2020-07-20 21:59:51,291 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 21:59:51,292 INFO  L93              Difference]: Finished difference Result 3084 states and 4287 transitions.
[2020-07-20 21:59:51,292 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-07-20 21:59:51,292 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 142
[2020-07-20 21:59:51,293 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 21:59:51,312 INFO  L225             Difference]: With dead ends: 3084
[2020-07-20 21:59:51,312 INFO  L226             Difference]: Without dead ends: 2272
[2020-07-20 21:59:51,316 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132
[2020-07-20 21:59:51,320 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2272 states.
[2020-07-20 21:59:51,440 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2065.
[2020-07-20 21:59:51,440 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2065 states.
[2020-07-20 21:59:51,453 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2574 transitions.
[2020-07-20 21:59:51,453 INFO  L78                 Accepts]: Start accepts. Automaton has 2065 states and 2574 transitions. Word has length 142
[2020-07-20 21:59:51,454 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 21:59:51,454 INFO  L479      AbstractCegarLoop]: Abstraction has 2065 states and 2574 transitions.
[2020-07-20 21:59:51,454 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-07-20 21:59:51,454 INFO  L276                IsEmpty]: Start isEmpty. Operand 2065 states and 2574 transitions.
[2020-07-20 21:59:51,510 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2020-07-20 21:59:51,511 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 21:59:51,511 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 21:59:51,712 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 21:59:51,712 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 21:59:51,712 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 21:59:51,713 INFO  L82        PathProgramCache]: Analyzing trace with hash 1394209672, now seen corresponding path program 1 times
[2020-07-20 21:59:51,713 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 21:59:51,713 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2035077830]
[2020-07-20 21:59:51,713 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 21:59:51,832 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 21:59:51,833 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 21:59:51,835 INFO  L263         TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-07-20 21:59:51,838 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 21:59:51,903 INFO  L134       CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2020-07-20 21:59:51,903 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 21:59:51,903 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2035077830]
[2020-07-20 21:59:51,904 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 21:59:51,904 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-20 21:59:51,904 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948421898]
[2020-07-20 21:59:51,905 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 21:59:51,905 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 21:59:51,905 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 21:59:51,905 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 21:59:51,905 INFO  L87              Difference]: Start difference. First operand 2065 states and 2574 transitions. Second operand 5 states.
[2020-07-20 21:59:52,720 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 21:59:52,720 INFO  L93              Difference]: Finished difference Result 4710 states and 6033 transitions.
[2020-07-20 21:59:52,721 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-07-20 21:59:52,721 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 149
[2020-07-20 21:59:52,721 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 21:59:52,738 INFO  L225             Difference]: With dead ends: 4710
[2020-07-20 21:59:52,739 INFO  L226             Difference]: Without dead ends: 2655
[2020-07-20 21:59:52,744 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2020-07-20 21:59:52,748 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2655 states.
[2020-07-20 21:59:52,862 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2655 to 2353.
[2020-07-20 21:59:52,862 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2353 states.
[2020-07-20 21:59:52,880 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2353 states to 2353 states and 3037 transitions.
[2020-07-20 21:59:52,881 INFO  L78                 Accepts]: Start accepts. Automaton has 2353 states and 3037 transitions. Word has length 149
[2020-07-20 21:59:52,882 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 21:59:52,882 INFO  L479      AbstractCegarLoop]: Abstraction has 2353 states and 3037 transitions.
[2020-07-20 21:59:52,882 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 21:59:52,883 INFO  L276                IsEmpty]: Start isEmpty. Operand 2353 states and 3037 transitions.
[2020-07-20 21:59:52,896 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 151
[2020-07-20 21:59:52,896 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 21:59:52,897 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 21:59:53,112 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 21:59:53,113 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 21:59:53,113 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 21:59:53,114 INFO  L82        PathProgramCache]: Analyzing trace with hash 403851526, now seen corresponding path program 1 times
[2020-07-20 21:59:53,114 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 21:59:53,114 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778300778]
[2020-07-20 21:59:53,114 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 21:59:53,240 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 21:59:53,240 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 21:59:53,243 INFO  L263         TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-07-20 21:59:53,246 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 21:59:53,290 INFO  L134       CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 21:59:53,290 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 21:59:53,363 INFO  L134       CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 21:59:53,363 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778300778]
[2020-07-20 21:59:53,363 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 21:59:53,364 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2020-07-20 21:59:53,364 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657027014]
[2020-07-20 21:59:53,364 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-07-20 21:59:53,365 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 21:59:53,365 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-07-20 21:59:53,366 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2020-07-20 21:59:53,368 INFO  L87              Difference]: Start difference. First operand 2353 states and 3037 transitions. Second operand 7 states.
[2020-07-20 21:59:54,165 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 21:59:54,166 INFO  L93              Difference]: Finished difference Result 4178 states and 5399 transitions.
[2020-07-20 21:59:54,166 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-07-20 21:59:54,166 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 150
[2020-07-20 21:59:54,167 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 21:59:54,177 INFO  L225             Difference]: With dead ends: 4178
[2020-07-20 21:59:54,178 INFO  L226             Difference]: Without dead ends: 2242
[2020-07-20 21:59:54,182 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2020-07-20 21:59:54,186 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2242 states.
[2020-07-20 21:59:54,235 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 1811.
[2020-07-20 21:59:54,235 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1811 states.
[2020-07-20 21:59:54,242 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2290 transitions.
[2020-07-20 21:59:54,242 INFO  L78                 Accepts]: Start accepts. Automaton has 1811 states and 2290 transitions. Word has length 150
[2020-07-20 21:59:54,242 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 21:59:54,242 INFO  L479      AbstractCegarLoop]: Abstraction has 1811 states and 2290 transitions.
[2020-07-20 21:59:54,243 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-07-20 21:59:54,243 INFO  L276                IsEmpty]: Start isEmpty. Operand 1811 states and 2290 transitions.
[2020-07-20 21:59:54,249 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 171
[2020-07-20 21:59:54,249 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 21:59:54,250 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 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]
[2020-07-20 21:59:54,463 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 21:59:54,464 INFO  L427      AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 21:59:54,464 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 21:59:54,464 INFO  L82        PathProgramCache]: Analyzing trace with hash 1675110515, now seen corresponding path program 1 times
[2020-07-20 21:59:54,465 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 21:59:54,465 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351861672]
[2020-07-20 21:59:54,465 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 21:59:54,590 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 21:59:54,590 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 21:59:54,595 INFO  L263         TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 21:59:54,599 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 21:59:54,652 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2020-07-20 21:59:54,652 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 21:59:54,653 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351861672]
[2020-07-20 21:59:54,653 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 21:59:54,653 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 21:59:54,653 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653055981]
[2020-07-20 21:59:54,654 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 21:59:54,654 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 21:59:54,654 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 21:59:54,655 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 21:59:54,655 INFO  L87              Difference]: Start difference. First operand 1811 states and 2290 transitions. Second operand 3 states.
[2020-07-20 21:59:55,131 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 21:59:55,132 INFO  L93              Difference]: Finished difference Result 1811 states and 2290 transitions.
[2020-07-20 21:59:55,134 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 21:59:55,134 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 170
[2020-07-20 21:59:55,135 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 21:59:55,135 INFO  L225             Difference]: With dead ends: 1811
[2020-07-20 21:59:55,136 INFO  L226             Difference]: Without dead ends: 0
[2020-07-20 21:59:55,142 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 21:59:55,142 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-07-20 21:59:55,142 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-07-20 21:59:55,143 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-07-20 21:59:55,143 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-07-20 21:59:55,144 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 170
[2020-07-20 21:59:55,144 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 21:59:55,144 INFO  L479      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-07-20 21:59:55,144 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 21:59:55,144 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-07-20 21:59:55,145 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-20 21:59:55,345 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 21:59:55,348 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-07-20 21:59:56,056 WARN  L193               SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 49
[2020-07-20 21:59:56,201 WARN  L193               SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 34
[2020-07-20 21:59:56,336 WARN  L193               SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 34
[2020-07-20 21:59:56,340 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initFINAL(line -1)  no Hoare annotation was computed.
[2020-07-20 21:59:56,341 INFO  L264        CegarLoopResult]: At program point  ULTIMATE.initENTRY(line -1)  the Hoare annotation is:  (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (= ~a21~0 |old(~a21~0)|))
[2020-07-20 21:59:56,341 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initEXIT(line -1)  no Hoare annotation was computed.
[2020-07-20 21:59:56,341 INFO  L268        CegarLoopResult]: For program point  L333(lines 333 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,341 INFO  L268        CegarLoopResult]: For program point  L102(lines 102 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,341 INFO  L268        CegarLoopResult]: For program point  L565-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,342 INFO  L268        CegarLoopResult]: For program point  L532-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,342 INFO  L268        CegarLoopResult]: For program point  L499-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,342 INFO  L268        CegarLoopResult]: For program point  L466-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,342 INFO  L268        CegarLoopResult]: For program point  L433-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,342 INFO  L268        CegarLoopResult]: For program point  L400-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,342 INFO  L268        CegarLoopResult]: For program point  L268(lines 268 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,342 INFO  L268        CegarLoopResult]: For program point  L136(lines 136 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,342 INFO  L268        CegarLoopResult]: For program point  L566(line 566)  no Hoare annotation was computed.
[2020-07-20 21:59:56,343 INFO  L268        CegarLoopResult]: For program point  L533(line 533)  no Hoare annotation was computed.
[2020-07-20 21:59:56,343 INFO  L268        CegarLoopResult]: For program point  L500(line 500)  no Hoare annotation was computed.
[2020-07-20 21:59:56,343 INFO  L268        CegarLoopResult]: For program point  L467(line 467)  no Hoare annotation was computed.
[2020-07-20 21:59:56,343 INFO  L268        CegarLoopResult]: For program point  L434(line 434)  no Hoare annotation was computed.
[2020-07-20 21:59:56,343 INFO  L268        CegarLoopResult]: For program point  L401(line 401)  no Hoare annotation was computed.
[2020-07-20 21:59:56,343 INFO  L268        CegarLoopResult]: For program point  L203(lines 203 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,343 INFO  L268        CegarLoopResult]: For program point  L72(lines 72 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,343 INFO  L268        CegarLoopResult]: For program point  L568-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,343 INFO  L268        CegarLoopResult]: For program point  L535-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,344 INFO  L268        CegarLoopResult]: For program point  L502-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,344 INFO  L268        CegarLoopResult]: For program point  L469-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,344 INFO  L268        CegarLoopResult]: For program point  L436-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,344 INFO  L268        CegarLoopResult]: For program point  L403-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,344 INFO  L268        CegarLoopResult]: For program point  L337(lines 337 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,344 INFO  L268        CegarLoopResult]: For program point  L238(lines 238 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,344 INFO  L268        CegarLoopResult]: For program point  L569(line 569)  no Hoare annotation was computed.
[2020-07-20 21:59:56,345 INFO  L268        CegarLoopResult]: For program point  L536(line 536)  no Hoare annotation was computed.
[2020-07-20 21:59:56,345 INFO  L268        CegarLoopResult]: For program point  L503(line 503)  no Hoare annotation was computed.
[2020-07-20 21:59:56,345 INFO  L268        CegarLoopResult]: For program point  L470(line 470)  no Hoare annotation was computed.
[2020-07-20 21:59:56,345 INFO  L268        CegarLoopResult]: For program point  L437(line 437)  no Hoare annotation was computed.
[2020-07-20 21:59:56,345 INFO  L268        CegarLoopResult]: For program point  L404(line 404)  no Hoare annotation was computed.
[2020-07-20 21:59:56,345 INFO  L268        CegarLoopResult]: For program point  L173(lines 173 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,345 INFO  L268        CegarLoopResult]: For program point  L140(lines 140 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,345 INFO  L268        CegarLoopResult]: For program point  L372(lines 372 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,346 INFO  L268        CegarLoopResult]: For program point  calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 506)  no Hoare annotation was computed.
[2020-07-20 21:59:56,346 INFO  L268        CegarLoopResult]: For program point  L306(lines 306 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,346 INFO  L268        CegarLoopResult]: For program point  L273(lines 273 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,346 INFO  L268        CegarLoopResult]: For program point  L108(lines 108 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,346 INFO  L268        CegarLoopResult]: For program point  L571-1(lines 571 573)  no Hoare annotation was computed.
[2020-07-20 21:59:56,346 INFO  L268        CegarLoopResult]: For program point  L538-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,346 INFO  L268        CegarLoopResult]: For program point  L505-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,347 INFO  L268        CegarLoopResult]: For program point  L472-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,347 INFO  L268        CegarLoopResult]: For program point  L439-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,347 INFO  L268        CegarLoopResult]: For program point  L406-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,347 INFO  L268        CegarLoopResult]: For program point  L208(lines 208 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,347 INFO  L268        CegarLoopResult]: For program point  L43(lines 43 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,347 INFO  L268        CegarLoopResult]: For program point  L572(line 572)  no Hoare annotation was computed.
[2020-07-20 21:59:56,347 INFO  L268        CegarLoopResult]: For program point  L539(line 539)  no Hoare annotation was computed.
[2020-07-20 21:59:56,347 INFO  L268        CegarLoopResult]: For program point  L506(line 506)  no Hoare annotation was computed.
[2020-07-20 21:59:56,348 INFO  L268        CegarLoopResult]: For program point  L473(line 473)  no Hoare annotation was computed.
[2020-07-20 21:59:56,348 INFO  L268        CegarLoopResult]: For program point  L440(line 440)  no Hoare annotation was computed.
[2020-07-20 21:59:56,348 INFO  L268        CegarLoopResult]: For program point  L407(line 407)  no Hoare annotation was computed.
[2020-07-20 21:59:56,348 INFO  L268        CegarLoopResult]: For program point  L144(lines 144 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,348 INFO  L268        CegarLoopResult]: For program point  L541-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,348 INFO  L268        CegarLoopResult]: For program point  L508-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,348 INFO  L268        CegarLoopResult]: For program point  L475-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,348 INFO  L268        CegarLoopResult]: For program point  L442-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,349 INFO  L268        CegarLoopResult]: For program point  L409-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,349 INFO  L268        CegarLoopResult]: For program point  L178(lines 178 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,349 INFO  L268        CegarLoopResult]: For program point  L542(line 542)  no Hoare annotation was computed.
[2020-07-20 21:59:56,349 INFO  L268        CegarLoopResult]: For program point  L509(line 509)  no Hoare annotation was computed.
[2020-07-20 21:59:56,349 INFO  L268        CegarLoopResult]: For program point  L476(line 476)  no Hoare annotation was computed.
[2020-07-20 21:59:56,349 INFO  L268        CegarLoopResult]: For program point  L443(line 443)  no Hoare annotation was computed.
[2020-07-20 21:59:56,349 INFO  L268        CegarLoopResult]: For program point  L410(line 410)  no Hoare annotation was computed.
[2020-07-20 21:59:56,350 INFO  L268        CegarLoopResult]: For program point  L377(lines 377 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,350 INFO  L268        CegarLoopResult]: For program point  L278(lines 278 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,350 INFO  L268        CegarLoopResult]: For program point  L245(lines 245 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,350 INFO  L268        CegarLoopResult]: For program point  L80(lines 80 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,350 INFO  L268        CegarLoopResult]: For program point  L345(lines 345 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,350 INFO  L268        CegarLoopResult]: For program point  L312(lines 312 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,350 INFO  L268        CegarLoopResult]: For program point  L114(lines 114 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,350 INFO  L268        CegarLoopResult]: For program point  L544-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,351 INFO  L268        CegarLoopResult]: For program point  L511-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,351 INFO  L268        CegarLoopResult]: For program point  L478-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,351 INFO  L268        CegarLoopResult]: For program point  L445-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,351 INFO  L268        CegarLoopResult]: For program point  L412-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,351 INFO  L268        CegarLoopResult]: For program point  L214(lines 214 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,351 INFO  L268        CegarLoopResult]: For program point  L148(lines 148 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,351 INFO  L268        CegarLoopResult]: For program point  L49(lines 49 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,351 INFO  L268        CegarLoopResult]: For program point  L545(line 545)  no Hoare annotation was computed.
[2020-07-20 21:59:56,351 INFO  L268        CegarLoopResult]: For program point  L512(line 512)  no Hoare annotation was computed.
[2020-07-20 21:59:56,352 INFO  L268        CegarLoopResult]: For program point  L479(line 479)  no Hoare annotation was computed.
[2020-07-20 21:59:56,352 INFO  L268        CegarLoopResult]: For program point  L446(line 446)  no Hoare annotation was computed.
[2020-07-20 21:59:56,352 INFO  L268        CegarLoopResult]: For program point  L413(line 413)  no Hoare annotation was computed.
[2020-07-20 21:59:56,352 INFO  L268        CegarLoopResult]: For program point  L84(lines 84 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,352 INFO  L268        CegarLoopResult]: For program point  calculate_outputFINAL(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,352 INFO  L268        CegarLoopResult]: For program point  calculate_outputEXIT(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,352 INFO  L268        CegarLoopResult]: For program point  L547-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,352 INFO  L268        CegarLoopResult]: For program point  L514-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,353 INFO  L268        CegarLoopResult]: For program point  L481-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,353 INFO  L268        CegarLoopResult]: For program point  L448-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,353 INFO  L268        CegarLoopResult]: For program point  L382(lines 382 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,353 INFO  L268        CegarLoopResult]: For program point  L415-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,353 INFO  L268        CegarLoopResult]: For program point  L316(lines 316 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,353 INFO  L268        CegarLoopResult]: For program point  L250(lines 250 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,353 INFO  L268        CegarLoopResult]: For program point  L548(line 548)  no Hoare annotation was computed.
[2020-07-20 21:59:56,353 INFO  L268        CegarLoopResult]: For program point  L515(line 515)  no Hoare annotation was computed.
[2020-07-20 21:59:56,353 INFO  L268        CegarLoopResult]: For program point  L482(line 482)  no Hoare annotation was computed.
[2020-07-20 21:59:56,354 INFO  L268        CegarLoopResult]: For program point  L449(line 449)  no Hoare annotation was computed.
[2020-07-20 21:59:56,354 INFO  L268        CegarLoopResult]: For program point  L416(line 416)  no Hoare annotation was computed.
[2020-07-20 21:59:56,354 INFO  L268        CegarLoopResult]: For program point  L218(lines 218 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,354 INFO  L268        CegarLoopResult]: For program point  L152(lines 152 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,354 INFO  L268        CegarLoopResult]: For program point  L119(lines 119 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,354 INFO  L268        CegarLoopResult]: For program point  L318(lines 318 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,354 INFO  L268        CegarLoopResult]: For program point  L186(lines 186 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,354 INFO  L268        CegarLoopResult]: For program point  L54(lines 54 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,354 INFO  L268        CegarLoopResult]: For program point  L550-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,355 INFO  L268        CegarLoopResult]: For program point  L517-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,355 INFO  L268        CegarLoopResult]: For program point  L484-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,355 INFO  L268        CegarLoopResult]: For program point  L451-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,355 INFO  L268        CegarLoopResult]: For program point  L418-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,355 INFO  L268        CegarLoopResult]: For program point  L286(lines 286 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,355 INFO  L268        CegarLoopResult]: For program point  L551(line 551)  no Hoare annotation was computed.
[2020-07-20 21:59:56,355 INFO  L268        CegarLoopResult]: For program point  L518(line 518)  no Hoare annotation was computed.
[2020-07-20 21:59:56,355 INFO  L268        CegarLoopResult]: For program point  L485(line 485)  no Hoare annotation was computed.
[2020-07-20 21:59:56,355 INFO  L268        CegarLoopResult]: For program point  L452(line 452)  no Hoare annotation was computed.
[2020-07-20 21:59:56,356 INFO  L268        CegarLoopResult]: For program point  L419(line 419)  no Hoare annotation was computed.
[2020-07-20 21:59:56,356 INFO  L268        CegarLoopResult]: For program point  L353(lines 353 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,356 INFO  L268        CegarLoopResult]: For program point  L189(lines 189 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,356 INFO  L268        CegarLoopResult]: For program point  L553-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,356 INFO  L268        CegarLoopResult]: For program point  L520-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,356 INFO  L268        CegarLoopResult]: For program point  L487-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,356 INFO  L268        CegarLoopResult]: For program point  L454-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,356 INFO  L268        CegarLoopResult]: For program point  L421-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,356 INFO  L268        CegarLoopResult]: For program point  L355(lines 355 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,357 INFO  L268        CegarLoopResult]: For program point  L256(lines 256 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,357 INFO  L268        CegarLoopResult]: For program point  L223(lines 223 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,357 INFO  L268        CegarLoopResult]: For program point  L124(lines 124 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,357 INFO  L268        CegarLoopResult]: For program point  L554(line 554)  no Hoare annotation was computed.
[2020-07-20 21:59:56,357 INFO  L268        CegarLoopResult]: For program point  L521(line 521)  no Hoare annotation was computed.
[2020-07-20 21:59:56,357 INFO  L268        CegarLoopResult]: For program point  L488(line 488)  no Hoare annotation was computed.
[2020-07-20 21:59:56,357 INFO  L268        CegarLoopResult]: For program point  L455(line 455)  no Hoare annotation was computed.
[2020-07-20 21:59:56,357 INFO  L268        CegarLoopResult]: For program point  L422(line 422)  no Hoare annotation was computed.
[2020-07-20 21:59:56,358 INFO  L268        CegarLoopResult]: For program point  L92(lines 92 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,358 INFO  L264        CegarLoopResult]: At program point  calculate_outputENTRY(lines 30 575)  the Hoare annotation is:  (let ((.cse7 (not (<= 15 |old(~a8~0)|))) (.cse0 (<= ~a8~0 |old(~a8~0)|)) (.cse1 (<= ~a16~0 |old(~a16~0)|)) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse6 (<= ~a7~0 0)) (.cse3 (not (<= |old(~a7~0)| 0))) (.cse4 (not (<= |old(~a8~0)| 13))) (.cse5 (not (= 1 |old(~a21~0)|)))) (and (or (and .cse0 .cse1 (<= ~a16~0 5) .cse2) (and (or .cse3 .cse4 .cse5) (or (not (<= |old(~a16~0)| 5)) .cse5)) (and .cse0 .cse1 .cse6 .cse2)) (or (not (<= |old(~a21~0)| 0)) (and .cse0 .cse1 .cse2) .cse4) (or .cse7 .cse6 .cse3 .cse5) (or .cse7 .cse5 (and .cse0 .cse1 (<= 15 ~a8~0) .cse2)) (or .cse6 .cse3 .cse4 (not (<= |old(~a16~0)| 4)) .cse5)))
[2020-07-20 21:59:56,358 INFO  L268        CegarLoopResult]: For program point  L324(lines 324 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,358 INFO  L268        CegarLoopResult]: For program point  L556-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,358 INFO  L268        CegarLoopResult]: For program point  L523-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,358 INFO  L268        CegarLoopResult]: For program point  L490-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,358 INFO  L268        CegarLoopResult]: For program point  L457-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,358 INFO  L268        CegarLoopResult]: For program point  L391(lines 391 393)  no Hoare annotation was computed.
[2020-07-20 21:59:56,359 INFO  L268        CegarLoopResult]: For program point  L424-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,359 INFO  L268        CegarLoopResult]: For program point  L391-2(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,359 INFO  L268        CegarLoopResult]: For program point  L292(lines 292 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,359 INFO  L268        CegarLoopResult]: For program point  L160(lines 160 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,359 INFO  L268        CegarLoopResult]: For program point  L557(line 557)  no Hoare annotation was computed.
[2020-07-20 21:59:56,359 INFO  L268        CegarLoopResult]: For program point  L524(line 524)  no Hoare annotation was computed.
[2020-07-20 21:59:56,359 INFO  L268        CegarLoopResult]: For program point  L491(line 491)  no Hoare annotation was computed.
[2020-07-20 21:59:56,359 INFO  L268        CegarLoopResult]: For program point  L458(line 458)  no Hoare annotation was computed.
[2020-07-20 21:59:56,359 INFO  L268        CegarLoopResult]: For program point  L425(line 425)  no Hoare annotation was computed.
[2020-07-20 21:59:56,360 INFO  L268        CegarLoopResult]: For program point  L392(line 392)  no Hoare annotation was computed.
[2020-07-20 21:59:56,360 INFO  L268        CegarLoopResult]: For program point  L194(lines 194 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,360 INFO  L268        CegarLoopResult]: For program point  L62(lines 62 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,360 INFO  L268        CegarLoopResult]: For program point  L261(lines 261 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,360 INFO  L268        CegarLoopResult]: For program point  L129(lines 129 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,360 INFO  L268        CegarLoopResult]: For program point  L559-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,360 INFO  L268        CegarLoopResult]: For program point  L526-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,360 INFO  L268        CegarLoopResult]: For program point  L493-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,360 INFO  L268        CegarLoopResult]: For program point  L460-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,361 INFO  L268        CegarLoopResult]: For program point  L427-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,361 INFO  L268        CegarLoopResult]: For program point  L361(lines 361 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,361 INFO  L268        CegarLoopResult]: For program point  L394-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,361 INFO  L268        CegarLoopResult]: For program point  L97(lines 97 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,361 INFO  L268        CegarLoopResult]: For program point  L31(lines 31 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,361 INFO  L268        CegarLoopResult]: For program point  L560(line 560)  no Hoare annotation was computed.
[2020-07-20 21:59:56,361 INFO  L268        CegarLoopResult]: For program point  L527(line 527)  no Hoare annotation was computed.
[2020-07-20 21:59:56,361 INFO  L268        CegarLoopResult]: For program point  L494(line 494)  no Hoare annotation was computed.
[2020-07-20 21:59:56,362 INFO  L268        CegarLoopResult]: For program point  L461(line 461)  no Hoare annotation was computed.
[2020-07-20 21:59:56,362 INFO  L268        CegarLoopResult]: For program point  L428(line 428)  no Hoare annotation was computed.
[2020-07-20 21:59:56,362 INFO  L268        CegarLoopResult]: For program point  L395(line 395)  no Hoare annotation was computed.
[2020-07-20 21:59:56,362 INFO  L268        CegarLoopResult]: For program point  L329(lines 329 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,362 INFO  L268        CegarLoopResult]: For program point  L197(lines 197 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,362 INFO  L268        CegarLoopResult]: For program point  L65(lines 65 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,362 INFO  L268        CegarLoopResult]: For program point  L363(lines 363 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,362 INFO  L268        CegarLoopResult]: For program point  L231(lines 231 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,362 INFO  L268        CegarLoopResult]: For program point  L165(lines 165 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,362 INFO  L268        CegarLoopResult]: For program point  L562-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,363 INFO  L268        CegarLoopResult]: For program point  L529-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,363 INFO  L268        CegarLoopResult]: For program point  L496-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,363 INFO  L268        CegarLoopResult]: For program point  L463-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,363 INFO  L268        CegarLoopResult]: For program point  L430-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,363 INFO  L268        CegarLoopResult]: For program point  L397-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 21:59:56,363 INFO  L268        CegarLoopResult]: For program point  L265(lines 265 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,363 INFO  L268        CegarLoopResult]: For program point  L563(line 563)  no Hoare annotation was computed.
[2020-07-20 21:59:56,363 INFO  L268        CegarLoopResult]: For program point  L530(line 530)  no Hoare annotation was computed.
[2020-07-20 21:59:56,363 INFO  L268        CegarLoopResult]: For program point  L497(line 497)  no Hoare annotation was computed.
[2020-07-20 21:59:56,364 INFO  L268        CegarLoopResult]: For program point  L464(line 464)  no Hoare annotation was computed.
[2020-07-20 21:59:56,364 INFO  L268        CegarLoopResult]: For program point  L431(line 431)  no Hoare annotation was computed.
[2020-07-20 21:59:56,364 INFO  L268        CegarLoopResult]: For program point  L398(line 398)  no Hoare annotation was computed.
[2020-07-20 21:59:56,364 INFO  L268        CegarLoopResult]: For program point  L365(lines 365 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,364 INFO  L268        CegarLoopResult]: For program point  L299(lines 299 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,364 INFO  L268        CegarLoopResult]: For program point  L35(lines 35 390)  no Hoare annotation was computed.
[2020-07-20 21:59:56,364 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startEXIT(line -1)  no Hoare annotation was computed.
[2020-07-20 21:59:56,364 INFO  L264        CegarLoopResult]: At program point  L-1(line -1)  the Hoare annotation is:  (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (= 1 ~a21~0))
[2020-07-20 21:59:56,364 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.startENTRY(line -1)  the Hoare annotation is:  true
[2020-07-20 21:59:56,365 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startFINAL(line -1)  no Hoare annotation was computed.
[2020-07-20 21:59:56,365 INFO  L264        CegarLoopResult]: At program point  mainENTRY(lines 577 594)  the Hoare annotation is:  (or (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (<= ~a7~0 0) (<= 15 ~a8~0) (= ~a21~0 |old(~a21~0)|)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|)))
[2020-07-20 21:59:56,365 INFO  L268        CegarLoopResult]: For program point  mainEXIT(lines 577 594)  no Hoare annotation was computed.
[2020-07-20 21:59:56,365 INFO  L264        CegarLoopResult]: At program point  L591(line 591)  the Hoare annotation is:  (let ((.cse1 (= 1 ~a21~0)) (.cse0 (<= ~a8~0 13))) (or (and .cse0 (<= ~a7~0 0) (= ~a21~0 |old(~a21~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse1) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (<= ~a16~0 5) .cse1) (and .cse0 (<= ~a21~0 0)) (not (= 1 |old(~a21~0)|))))
[2020-07-20 21:59:56,365 INFO  L268        CegarLoopResult]: For program point  L591-1(line 591)  no Hoare annotation was computed.
[2020-07-20 21:59:56,365 INFO  L268        CegarLoopResult]: For program point  L588(line 588)  no Hoare annotation was computed.
[2020-07-20 21:59:56,366 INFO  L264        CegarLoopResult]: At program point  L583-2(lines 583 593)  the Hoare annotation is:  (let ((.cse1 (= 1 ~a21~0)) (.cse0 (<= ~a8~0 13))) (or (and .cse0 (<= ~a7~0 0) (= ~a21~0 |old(~a21~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse1) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (<= ~a16~0 5) .cse1) (and .cse0 (<= ~a21~0 0)) (not (= 1 |old(~a21~0)|))))
[2020-07-20 21:59:56,366 INFO  L268        CegarLoopResult]: For program point  L583-3(lines 577 594)  no Hoare annotation was computed.
[2020-07-20 21:59:56,386 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 09:59:56 BoogieIcfgContainer
[2020-07-20 21:59:56,386 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-20 21:59:56,389 INFO  L168              Benchmark]: Toolchain (without parser) took 13658.05 ms. Allocated memory was 145.8 MB in the beginning and 401.6 MB in the end (delta: 255.9 MB). Free memory was 100.6 MB in the beginning and 257.8 MB in the end (delta: -157.2 MB). Peak memory consumption was 225.9 MB. Max. memory is 7.1 GB.
[2020-07-20 21:59:56,389 INFO  L168              Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-07-20 21:59:56,390 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 777.49 ms. Allocated memory was 145.8 MB in the beginning and 206.6 MB in the end (delta: 60.8 MB). Free memory was 100.2 MB in the beginning and 172.8 MB in the end (delta: -72.6 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB.
[2020-07-20 21:59:56,391 INFO  L168              Benchmark]: Boogie Preprocessor took 175.85 ms. Allocated memory is still 206.6 MB. Free memory was 172.8 MB in the beginning and 167.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB.
[2020-07-20 21:59:56,392 INFO  L168              Benchmark]: RCFGBuilder took 1320.43 ms. Allocated memory was 206.6 MB in the beginning and 240.1 MB in the end (delta: 33.6 MB). Free memory was 167.9 MB in the beginning and 182.8 MB in the end (delta: -14.8 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB.
[2020-07-20 21:59:56,393 INFO  L168              Benchmark]: TraceAbstraction took 11375.96 ms. Allocated memory was 240.1 MB in the beginning and 401.6 MB in the end (delta: 161.5 MB). Free memory was 182.8 MB in the beginning and 257.8 MB in the end (delta: -75.0 MB). Peak memory consumption was 213.7 MB. Max. memory is 7.1 GB.
[2020-07-20 21:59:56,397 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 777.49 ms. Allocated memory was 145.8 MB in the beginning and 206.6 MB in the end (delta: 60.8 MB). Free memory was 100.2 MB in the beginning and 172.8 MB in the end (delta: -72.6 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 175.85 ms. Allocated memory is still 206.6 MB. Free memory was 172.8 MB in the beginning and 167.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1320.43 ms. Allocated memory was 206.6 MB in the beginning and 240.1 MB in the end (delta: 33.6 MB). Free memory was 167.9 MB in the beginning and 182.8 MB in the end (delta: -14.8 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 11375.96 ms. Allocated memory was 240.1 MB in the beginning and 401.6 MB in the end (delta: 161.5 MB). Free memory was 182.8 MB in the beginning and 257.8 MB in the end (delta: -75.0 MB). Peak memory consumption was 213.7 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 506]: 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: 583]: Loop Invariant
    Derived loop invariant: ((((((((a8 <= 13 && a7 <= 0) && a21 == \old(a21)) || !(15 <= \old(a8))) || (15 <= a8 && 1 == a21)) || !(\old(a7) <= 0)) || !(\old(a16) <= 5)) || (a16 <= 5 && 1 == a21)) || (a8 <= 13 && a21 <= 0)) || !(1 == \old(a21))
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.2s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 594 SDtfs, 2076 SDslu, 203 SDs, 0 SdLazy, 4387 SolverSat, 728 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1283 GetRequests, 1256 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2353occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 940 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 62 PreInvPairs, 90 NumberOfFragments, 281 HoareAnnotationTreeSize, 62 FomulaSimplifications, 1637 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 709 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 984 NumberOfCodeBlocks, 984 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1267 ConstructedInterpolants, 0 QuantifiedInterpolants, 351466 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2826 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 280/288 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...