/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 NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c


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


This is Ultimate 0.1.25-d623d84
[2020-07-20 11:32:44,544 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2020-07-20 11:32:44,597 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-20 11:32:44,599 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-20 11:32:44,599 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-20 11:32:44,601 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-20 11:32:44,606 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-20 11:32:44,611 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-20 11:32:44,614 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-20 11:32:44,615 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-07-20 11:32:44,616 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-20 11:32:44,618 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-07-20 11:32:44,631 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 11:32:44,668 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-07-20 11:32:44,668 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-20 11:32:44,669 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-20 11:32:44,670 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-07-20 11:32:44,670 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-07-20 11:32:44,670 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-20 11:32:44,673 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-07-20 11:32:44,673 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-07-20 11:32:44,673 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-07-20 11:32:44,673 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-07-20 11:32:44,673 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-07-20 11:32:44,673 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-20 11:32:44,674 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-07-20 11:32:44,674 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-07-20 11:32:44,674 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-07-20 11:32:44,674 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-07-20 11:32:44,674 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-07-20 11:32:44,675 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-20 11:32:44,675 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-07-20 11:32:44,675 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-07-20 11:32:44,676 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-07-20 11:32:44,676 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 11:32:44,676 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-20 11:32:44,677 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-07-20 11:32:44,677 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-20 11:32:44,677 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-07-20 11:32:44,677 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:44,677 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-20 11:32:44,678 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-07-20 11:32:44,678 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 -> NOT_INCREMENTALLY
[2020-07-20 11:32:44,969 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-20 11:32:44,983 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-20 11:32:44,987 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-20 11:32:44,988 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-07-20 11:32:44,988 INFO  L275        PluginConnector]: CDTParser initialized
[2020-07-20 11:32:44,989 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c
[2020-07-20 11:32:45,064 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08b82335f/4b670ebb4b5e4413aa9f8895968dc173/FLAGdbefe7181
[2020-07-20 11:32:45,683 INFO  L306              CDTParser]: Found 1 translation units.
[2020-07-20 11:32:45,684 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label08.c
[2020-07-20 11:32:45,697 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08b82335f/4b670ebb4b5e4413aa9f8895968dc173/FLAGdbefe7181
[2020-07-20 11:32:45,879 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08b82335f/4b670ebb4b5e4413aa9f8895968dc173
[2020-07-20 11:32:45,888 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-20 11:32:45,891 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-20 11:32:45,892 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-20 11:32:45,892 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-20 11:32:45,896 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-20 11:32:45,897 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:32:45" (1/1) ...
[2020-07-20 11:32:45,899 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ad6925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:45, skipping insertion in model container
[2020-07-20 11:32:45,900 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:32:45" (1/1) ...
[2020-07-20 11:32:45,907 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-07-20 11:32:45,954 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-07-20 11:32:46,358 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 11:32:46,364 INFO  L203         MainTranslator]: Completed pre-run
[2020-07-20 11:32:46,611 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 11:32:46,628 INFO  L208         MainTranslator]: Completed translation
[2020-07-20 11:32:46,629 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46 WrapperNode
[2020-07-20 11:32:46,629 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-20 11:32:46,630 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-20 11:32:46,630 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-20 11:32:46,630 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-07-20 11:32:46,644 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (1/1) ...
[2020-07-20 11:32:46,644 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (1/1) ...
[2020-07-20 11:32:46,663 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (1/1) ...
[2020-07-20 11:32:46,663 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (1/1) ...
[2020-07-20 11:32:46,705 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (1/1) ...
[2020-07-20 11:32:46,724 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (1/1) ...
[2020-07-20 11:32:46,740 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (1/1) ...
[2020-07-20 11:32:46,758 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-20 11:32:46,758 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-20 11:32:46,758 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-07-20 11:32:46,758 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-07-20 11:32:46,760 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (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 11:32:46,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-20 11:32:46,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-20 11:32:46,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2020-07-20 11:32:46,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-07-20 11:32:46,833 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2020-07-20 11:32:46,833 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-20 11:32:46,833 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-20 11:32:46,834 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2020-07-20 11:32:46,834 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-07-20 11:32:46,834 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-20 11:32:46,835 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-20 11:32:48,067 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-20 11:32:48,067 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-07-20 11:32:48,073 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:32:48 BoogieIcfgContainer
[2020-07-20 11:32:48,073 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-20 11:32:48,075 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-20 11:32:48,075 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-07-20 11:32:48,078 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-07-20 11:32:48,079 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:32:45" (1/3) ...
[2020-07-20 11:32:48,080 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10100ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:32:48, skipping insertion in model container
[2020-07-20 11:32:48,080 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (2/3) ...
[2020-07-20 11:32:48,080 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10100ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:32:48, skipping insertion in model container
[2020-07-20 11:32:48,081 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:32:48" (3/3) ...
[2020-07-20 11:32:48,082 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem01_label08.c
[2020-07-20 11:32:48,094 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-20 11:32:48,102 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-20 11:32:48,117 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-20 11:32:48,144 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-07-20 11:32:48,144 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-07-20 11:32:48,144 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-20 11:32:48,144 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-20 11:32:48,145 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-20 11:32:48,145 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-07-20 11:32:48,145 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-20 11:32:48,145 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-20 11:32:48,170 INFO  L276                IsEmpty]: Start isEmpty. Operand 207 states.
[2020-07-20 11:32:48,183 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2020-07-20 11:32:48,184 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 11:32:48,185 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, 1, 1, 1]
[2020-07-20 11:32:48,185 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:32:48,191 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:32:48,192 INFO  L82        PathProgramCache]: Analyzing trace with hash -1920403729, now seen corresponding path program 1 times
[2020-07-20 11:32:48,202 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:32:48,202 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486316531]
[2020-07-20 11:32:48,203 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 11:32:48,396 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:32:48,400 INFO  L263         TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-07-20 11:32:48,419 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:32:48,547 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 11:32:48,548 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:32:48,549 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486316531]
[2020-07-20 11:32:48,550 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:32:48,550 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:32:48,551 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969600604]
[2020-07-20 11:32:48,561 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:32:48,561 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:32:48,575 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:32:48,576 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:32:48,578 INFO  L87              Difference]: Start difference. First operand 207 states. Second operand 3 states.
[2020-07-20 11:32:49,658 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:32:49,659 INFO  L93              Difference]: Finished difference Result 572 states and 963 transitions.
[2020-07-20 11:32:49,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 11:32:49,661 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 119
[2020-07-20 11:32:49,662 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:32:49,695 INFO  L225             Difference]: With dead ends: 572
[2020-07-20 11:32:49,700 INFO  L226             Difference]: Without dead ends: 278
[2020-07-20 11:32:49,716 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 11:32:49,756 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 278 states.
[2020-07-20 11:32:49,826 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278.
[2020-07-20 11:32:49,827 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 278 states.
[2020-07-20 11:32:49,829 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions.
[2020-07-20 11:32:49,831 INFO  L78                 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 119
[2020-07-20 11:32:49,832 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:32:49,832 INFO  L479      AbstractCegarLoop]: Abstraction has 278 states and 394 transitions.
[2020-07-20 11:32:49,833 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:32:49,833 INFO  L276                IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions.
[2020-07-20 11:32:49,837 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2020-07-20 11:32:49,838 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 11:32:49,838 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, 1, 1, 1]
[2020-07-20 11:32:50,048 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:50,049 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:32:50,049 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:32:50,050 INFO  L82        PathProgramCache]: Analyzing trace with hash 10659704, now seen corresponding path program 1 times
[2020-07-20 11:32:50,050 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:32:50,051 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906272485]
[2020-07-20 11:32:50,052 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 11:32:50,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:32:50,144 INFO  L263         TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-07-20 11:32:50,149 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:32:50,188 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 11:32:50,189 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:32:50,189 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906272485]
[2020-07-20 11:32:50,190 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:32:50,190 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-20 11:32:50,190 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537300649]
[2020-07-20 11:32:50,192 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 11:32:50,193 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:32:50,193 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 11:32:50,193 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 11:32:50,194 INFO  L87              Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 5 states.
[2020-07-20 11:32:51,027 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:32:51,028 INFO  L93              Difference]: Finished difference Result 842 states and 1218 transitions.
[2020-07-20 11:32:51,028 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-07-20 11:32:51,029 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 129
[2020-07-20 11:32:51,029 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:32:51,046 INFO  L225             Difference]: With dead ends: 842
[2020-07-20 11:32:51,047 INFO  L226             Difference]: Without dead ends: 570
[2020-07-20 11:32:51,054 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 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 11:32:51,055 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 570 states.
[2020-07-20 11:32:51,120 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 556.
[2020-07-20 11:32:51,121 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 556 states.
[2020-07-20 11:32:51,124 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions.
[2020-07-20 11:32:51,125 INFO  L78                 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 129
[2020-07-20 11:32:51,125 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:32:51,125 INFO  L479      AbstractCegarLoop]: Abstraction has 556 states and 785 transitions.
[2020-07-20 11:32:51,125 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 11:32:51,126 INFO  L276                IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions.
[2020-07-20 11:32:51,130 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2020-07-20 11:32:51,131 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 11:32:51,131 INFO  L422         BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 11:32:51,365 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:51,365 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:32:51,366 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:32:51,366 INFO  L82        PathProgramCache]: Analyzing trace with hash -1525536778, now seen corresponding path program 1 times
[2020-07-20 11:32:51,366 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:32:51,367 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605669416]
[2020-07-20 11:32:51,367 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 11:32:51,453 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:32:51,456 INFO  L263         TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-07-20 11:32:51,461 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:32:51,498 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 11:32:51,498 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:32:51,499 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605669416]
[2020-07-20 11:32:51,499 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:32:51,499 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:32:51,500 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553488446]
[2020-07-20 11:32:51,500 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:32:51,501 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:32:51,501 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:32:51,501 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:32:51,501 INFO  L87              Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 3 states.
[2020-07-20 11:32:52,069 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:32:52,069 INFO  L93              Difference]: Finished difference Result 1652 states and 2381 transitions.
[2020-07-20 11:32:52,072 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 11:32:52,073 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 130
[2020-07-20 11:32:52,074 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:32:52,080 INFO  L225             Difference]: With dead ends: 1652
[2020-07-20 11:32:52,080 INFO  L226             Difference]: Without dead ends: 1102
[2020-07-20 11:32:52,082 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 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 11:32:52,085 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1102 states.
[2020-07-20 11:32:52,142 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102.
[2020-07-20 11:32:52,145 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1102 states.
[2020-07-20 11:32:52,152 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1516 transitions.
[2020-07-20 11:32:52,153 INFO  L78                 Accepts]: Start accepts. Automaton has 1102 states and 1516 transitions. Word has length 130
[2020-07-20 11:32:52,153 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:32:52,153 INFO  L479      AbstractCegarLoop]: Abstraction has 1102 states and 1516 transitions.
[2020-07-20 11:32:52,154 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:32:52,154 INFO  L276                IsEmpty]: Start isEmpty. Operand 1102 states and 1516 transitions.
[2020-07-20 11:32:52,163 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2020-07-20 11:32:52,163 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 11:32:52,164 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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]
[2020-07-20 11:32:52,378 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:52,379 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:32:52,380 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:32:52,380 INFO  L82        PathProgramCache]: Analyzing trace with hash 509652639, now seen corresponding path program 1 times
[2020-07-20 11:32:52,381 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:32:52,381 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249992407]
[2020-07-20 11:32:52,382 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 11:32:52,512 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:32:52,514 INFO  L263         TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:32:52,530 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:32:52,604 INFO  L134       CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 11:32:52,604 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 11:32:52,692 INFO  L134       CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 11:32:52,692 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249992407]
[2020-07-20 11:32:52,693 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 11:32:52,693 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2020-07-20 11:32:52,693 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309506232]
[2020-07-20 11:32:52,694 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-07-20 11:32:52,694 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:32:52,695 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-07-20 11:32:52,695 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2020-07-20 11:32:52,695 INFO  L87              Difference]: Start difference. First operand 1102 states and 1516 transitions. Second operand 8 states.
[2020-07-20 11:32:54,567 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:32:54,567 INFO  L93              Difference]: Finished difference Result 4083 states and 6003 transitions.
[2020-07-20 11:32:54,568 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-07-20 11:32:54,568 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 149
[2020-07-20 11:32:54,569 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:32:54,599 INFO  L225             Difference]: With dead ends: 4083
[2020-07-20 11:32:54,599 INFO  L226             Difference]: Without dead ends: 2987
[2020-07-20 11:32:54,604 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 295 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 11:32:54,608 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2987 states.
[2020-07-20 11:32:54,722 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2351.
[2020-07-20 11:32:54,722 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2351 states.
[2020-07-20 11:32:54,737 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2351 states to 2351 states and 3107 transitions.
[2020-07-20 11:32:54,738 INFO  L78                 Accepts]: Start accepts. Automaton has 2351 states and 3107 transitions. Word has length 149
[2020-07-20 11:32:54,738 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:32:54,739 INFO  L479      AbstractCegarLoop]: Abstraction has 2351 states and 3107 transitions.
[2020-07-20 11:32:54,739 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-07-20 11:32:54,739 INFO  L276                IsEmpty]: Start isEmpty. Operand 2351 states and 3107 transitions.
[2020-07-20 11:32:54,748 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 151
[2020-07-20 11:32:54,748 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 11:32:54,748 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1]
[2020-07-20 11:32:54,961 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:54,962 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:32:54,962 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:32:54,963 INFO  L82        PathProgramCache]: Analyzing trace with hash 127065043, now seen corresponding path program 1 times
[2020-07-20 11:32:54,963 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:32:54,963 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406793418]
[2020-07-20 11:32:54,964 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 11:32:55,089 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:32:55,091 INFO  L263         TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:32:55,094 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:32:55,159 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 11:32:55,159 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 11:32:55,249 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 11:32:55,249 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406793418]
[2020-07-20 11:32:55,250 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 11:32:55,250 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2020-07-20 11:32:55,250 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415376760]
[2020-07-20 11:32:55,251 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-07-20 11:32:55,251 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:32:55,252 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-07-20 11:32:55,252 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2020-07-20 11:32:55,253 INFO  L87              Difference]: Start difference. First operand 2351 states and 3107 transitions. Second operand 7 states.
[2020-07-20 11:32:56,962 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:32:56,962 INFO  L93              Difference]: Finished difference Result 7465 states and 10618 transitions.
[2020-07-20 11:32:56,963 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2020-07-20 11:32:56,963 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 150
[2020-07-20 11:32:56,964 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:32:57,008 INFO  L225             Difference]: With dead ends: 7465
[2020-07-20 11:32:57,008 INFO  L226             Difference]: Without dead ends: 5124
[2020-07-20 11:32:57,020 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 295 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72
[2020-07-20 11:32:57,027 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5124 states.
[2020-07-20 11:32:57,199 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5124 to 4716.
[2020-07-20 11:32:57,199 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4716 states.
[2020-07-20 11:32:57,223 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4716 states to 4716 states and 6222 transitions.
[2020-07-20 11:32:57,224 INFO  L78                 Accepts]: Start accepts. Automaton has 4716 states and 6222 transitions. Word has length 150
[2020-07-20 11:32:57,224 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:32:57,224 INFO  L479      AbstractCegarLoop]: Abstraction has 4716 states and 6222 transitions.
[2020-07-20 11:32:57,224 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-07-20 11:32:57,224 INFO  L276                IsEmpty]: Start isEmpty. Operand 4716 states and 6222 transitions.
[2020-07-20 11:32:57,239 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-07-20 11:32:57,240 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 11:32:57,240 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, 1, 1, 1]
[2020-07-20 11:32:57,453 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:57,454 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:32:57,454 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:32:57,455 INFO  L82        PathProgramCache]: Analyzing trace with hash 941995943, now seen corresponding path program 1 times
[2020-07-20 11:32:57,455 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:32:57,458 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761223507]
[2020-07-20 11:32:57,458 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 11:32:57,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:32:57,554 INFO  L263         TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:32:57,558 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:32:57,638 INFO  L134       CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-07-20 11:32:57,639 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:32:57,639 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761223507]
[2020-07-20 11:32:57,641 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:32:57,641 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:32:57,641 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551688636]
[2020-07-20 11:32:57,642 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:32:57,642 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:32:57,642 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:32:57,643 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:32:57,643 INFO  L87              Difference]: Start difference. First operand 4716 states and 6222 transitions. Second operand 3 states.
[2020-07-20 11:32:58,234 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:32:58,234 INFO  L93              Difference]: Finished difference Result 9553 states and 12594 transitions.
[2020-07-20 11:32:58,234 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 11:32:58,235 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-07-20 11:32:58,236 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:32:58,275 INFO  L225             Difference]: With dead ends: 9553
[2020-07-20 11:32:58,275 INFO  L226             Difference]: Without dead ends: 5121
[2020-07-20 11:32:58,289 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 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 11:32:58,295 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5121 states.
[2020-07-20 11:32:58,420 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5121 to 4575.
[2020-07-20 11:32:58,420 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4575 states.
[2020-07-20 11:32:58,431 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 5845 transitions.
[2020-07-20 11:32:58,431 INFO  L78                 Accepts]: Start accepts. Automaton has 4575 states and 5845 transitions. Word has length 153
[2020-07-20 11:32:58,432 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:32:58,432 INFO  L479      AbstractCegarLoop]: Abstraction has 4575 states and 5845 transitions.
[2020-07-20 11:32:58,432 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:32:58,432 INFO  L276                IsEmpty]: Start isEmpty. Operand 4575 states and 5845 transitions.
[2020-07-20 11:32:58,452 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-07-20 11:32:58,453 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 11:32:58,453 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2020-07-20 11:32:58,666 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:58,667 INFO  L427      AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:32:58,667 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:32:58,667 INFO  L82        PathProgramCache]: Analyzing trace with hash -763083429, now seen corresponding path program 1 times
[2020-07-20 11:32:58,667 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:32:58,669 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833431788]
[2020-07-20 11:32:58,670 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 11:32:58,770 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:32:58,773 INFO  L263         TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:32:58,776 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:32:58,811 INFO  L134       CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-07-20 11:32:58,811 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:32:58,812 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833431788]
[2020-07-20 11:32:58,812 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:32:58,812 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:32:58,812 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241204853]
[2020-07-20 11:32:58,813 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:32:58,813 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:32:58,813 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:32:58,814 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:32:58,814 INFO  L87              Difference]: Start difference. First operand 4575 states and 5845 transitions. Second operand 3 states.
[2020-07-20 11:32:59,403 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:32:59,404 INFO  L93              Difference]: Finished difference Result 7770 states and 9887 transitions.
[2020-07-20 11:32:59,404 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 11:32:59,404 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 154
[2020-07-20 11:32:59,405 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:32:59,428 INFO  L225             Difference]: With dead ends: 7770
[2020-07-20 11:32:59,429 INFO  L226             Difference]: Without dead ends: 4710
[2020-07-20 11:32:59,437 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 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 11:32:59,442 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4710 states.
[2020-07-20 11:32:59,537 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4710 to 4436.
[2020-07-20 11:32:59,537 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4436 states.
[2020-07-20 11:32:59,548 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 5602 transitions.
[2020-07-20 11:32:59,549 INFO  L78                 Accepts]: Start accepts. Automaton has 4436 states and 5602 transitions. Word has length 154
[2020-07-20 11:32:59,549 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:32:59,549 INFO  L479      AbstractCegarLoop]: Abstraction has 4436 states and 5602 transitions.
[2020-07-20 11:32:59,550 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:32:59,550 INFO  L276                IsEmpty]: Start isEmpty. Operand 4436 states and 5602 transitions.
[2020-07-20 11:32:59,563 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2020-07-20 11:32:59,563 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 11:32:59,564 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, 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]
[2020-07-20 11:32:59,777 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:59,778 INFO  L427      AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:32:59,778 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:32:59,779 INFO  L82        PathProgramCache]: Analyzing trace with hash -1873222613, now seen corresponding path program 1 times
[2020-07-20 11:32:59,779 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:32:59,780 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268210440]
[2020-07-20 11:32:59,780 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:59,867 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:32:59,868 INFO  L263         TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:32:59,876 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:32:59,926 INFO  L134       CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-07-20 11:32:59,926 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:32:59,926 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268210440]
[2020-07-20 11:32:59,926 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:32:59,926 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:32:59,927 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99726204]
[2020-07-20 11:32:59,927 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:32:59,927 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:32:59,928 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:32:59,928 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:32:59,928 INFO  L87              Difference]: Start difference. First operand 4436 states and 5602 transitions. Second operand 3 states.
[2020-07-20 11:33:00,459 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:33:00,459 INFO  L93              Difference]: Finished difference Result 7911 states and 9988 transitions.
[2020-07-20 11:33:00,460 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 11:33:00,460 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 155
[2020-07-20 11:33:00,461 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:33:00,482 INFO  L225             Difference]: With dead ends: 7911
[2020-07-20 11:33:00,482 INFO  L226             Difference]: Without dead ends: 4436
[2020-07-20 11:33:00,492 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 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 11:33:00,497 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4436 states.
[2020-07-20 11:33:00,638 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4436 to 4436.
[2020-07-20 11:33:00,638 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4436 states.
[2020-07-20 11:33:00,647 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 5429 transitions.
[2020-07-20 11:33:00,647 INFO  L78                 Accepts]: Start accepts. Automaton has 4436 states and 5429 transitions. Word has length 155
[2020-07-20 11:33:00,647 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:33:00,648 INFO  L479      AbstractCegarLoop]: Abstraction has 4436 states and 5429 transitions.
[2020-07-20 11:33:00,648 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:33:00,648 INFO  L276                IsEmpty]: Start isEmpty. Operand 4436 states and 5429 transitions.
[2020-07-20 11:33:00,662 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2020-07-20 11:33:00,662 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 11:33:00,662 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:33:00,879 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:33:00,880 INFO  L427      AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:33:00,880 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:33:00,880 INFO  L82        PathProgramCache]: Analyzing trace with hash 590175403, now seen corresponding path program 1 times
[2020-07-20 11:33:00,881 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:33:00,881 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525283410]
[2020-07-20 11:33:00,882 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:33:00,994 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:33:00,996 INFO  L263         TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-07-20 11:33:01,004 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:33:01,057 INFO  L134       CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-07-20 11:33:01,058 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 11:33:01,144 INFO  L134       CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-07-20 11:33:01,144 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525283410]
[2020-07-20 11:33:01,144 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 11:33:01,145 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5
[2020-07-20 11:33:01,145 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19023468]
[2020-07-20 11:33:01,145 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 11:33:01,146 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:33:01,146 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 11:33:01,146 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-07-20 11:33:01,146 INFO  L87              Difference]: Start difference. First operand 4436 states and 5429 transitions. Second operand 5 states.
[2020-07-20 11:33:01,810 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:33:01,810 INFO  L93              Difference]: Finished difference Result 5143 states and 6330 transitions.
[2020-07-20 11:33:01,810 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-07-20 11:33:01,811 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 163
[2020-07-20 11:33:01,811 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:33:01,842 INFO  L225             Difference]: With dead ends: 5143
[2020-07-20 11:33:01,842 INFO  L226             Difference]: Without dead ends: 5141
[2020-07-20 11:33:01,844 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 320 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2020-07-20 11:33:01,850 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5141 states.
[2020-07-20 11:33:02,002 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5141 to 4851.
[2020-07-20 11:33:02,002 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4851 states.
[2020-07-20 11:33:02,013 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4851 states to 4851 states and 5950 transitions.
[2020-07-20 11:33:02,013 INFO  L78                 Accepts]: Start accepts. Automaton has 4851 states and 5950 transitions. Word has length 163
[2020-07-20 11:33:02,014 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:33:02,014 INFO  L479      AbstractCegarLoop]: Abstraction has 4851 states and 5950 transitions.
[2020-07-20 11:33:02,014 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 11:33:02,014 INFO  L276                IsEmpty]: Start isEmpty. Operand 4851 states and 5950 transitions.
[2020-07-20 11:33:02,027 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2020-07-20 11:33:02,028 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 11:33:02,028 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:33:02,241 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:33:02,242 INFO  L427      AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:33:02,242 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:33:02,242 INFO  L82        PathProgramCache]: Analyzing trace with hash -1466650285, now seen corresponding path program 1 times
[2020-07-20 11:33:02,242 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:33:02,243 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635883130]
[2020-07-20 11:33:02,243 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:33:02,331 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:33:02,332 INFO  L263         TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:33:02,336 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:33:02,373 INFO  L134       CoverageAnalysis]: Checked inductivity of 61 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-07-20 11:33:02,373 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:33:02,374 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [635883130]
[2020-07-20 11:33:02,374 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:33:02,374 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:33:02,374 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969177687]
[2020-07-20 11:33:02,375 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:33:02,375 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:33:02,375 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:33:02,376 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:33:02,376 INFO  L87              Difference]: Start difference. First operand 4851 states and 5950 transitions. Second operand 3 states.
[2020-07-20 11:33:02,959 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:33:02,960 INFO  L93              Difference]: Finished difference Result 8878 states and 10858 transitions.
[2020-07-20 11:33:02,960 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 11:33:02,960 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 175
[2020-07-20 11:33:02,961 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:33:02,976 INFO  L225             Difference]: With dead ends: 8878
[2020-07-20 11:33:02,976 INFO  L226             Difference]: Without dead ends: 4986
[2020-07-20 11:33:02,985 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 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 11:33:02,990 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4986 states.
[2020-07-20 11:33:03,061 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4986 to 4432.
[2020-07-20 11:33:03,061 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4432 states.
[2020-07-20 11:33:03,069 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 5400 transitions.
[2020-07-20 11:33:03,069 INFO  L78                 Accepts]: Start accepts. Automaton has 4432 states and 5400 transitions. Word has length 175
[2020-07-20 11:33:03,070 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:33:03,070 INFO  L479      AbstractCegarLoop]: Abstraction has 4432 states and 5400 transitions.
[2020-07-20 11:33:03,070 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:33:03,070 INFO  L276                IsEmpty]: Start isEmpty. Operand 4432 states and 5400 transitions.
[2020-07-20 11:33:03,084 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 213
[2020-07-20 11:33:03,084 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 11:33:03,085 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:33:03,297 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:33:03,298 INFO  L427      AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:33:03,298 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:33:03,298 INFO  L82        PathProgramCache]: Analyzing trace with hash -853384892, now seen corresponding path program 1 times
[2020-07-20 11:33:03,298 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:33:03,299 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331110599]
[2020-07-20 11:33:03,299 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:33:03,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:33:03,416 INFO  L263         TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-07-20 11:33:03,421 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:33:03,475 INFO  L134       CoverageAnalysis]: Checked inductivity of 134 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-07-20 11:33:03,475 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 11:33:03,658 INFO  L134       CoverageAnalysis]: Checked inductivity of 134 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-07-20 11:33:03,658 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331110599]
[2020-07-20 11:33:03,658 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 11:33:03,659 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2020-07-20 11:33:03,659 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642336290]
[2020-07-20 11:33:03,660 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-07-20 11:33:03,660 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:33:03,660 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-07-20 11:33:03,660 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2020-07-20 11:33:03,660 INFO  L87              Difference]: Start difference. First operand 4432 states and 5400 transitions. Second operand 7 states.
[2020-07-20 11:33:05,187 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:33:05,187 INFO  L93              Difference]: Finished difference Result 7689 states and 9434 transitions.
[2020-07-20 11:33:05,188 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2020-07-20 11:33:05,188 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 212
[2020-07-20 11:33:05,188 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:33:05,189 INFO  L225             Difference]: With dead ends: 7689
[2020-07-20 11:33:05,189 INFO  L226             Difference]: Without dead ends: 0
[2020-07-20 11:33:05,207 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 420 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 11:33:05,207 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-07-20 11:33:05,207 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-07-20 11:33:05,208 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-07-20 11:33:05,208 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-07-20 11:33:05,208 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 212
[2020-07-20 11:33:05,211 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:33:05,211 INFO  L479      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-07-20 11:33:05,211 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-07-20 11:33:05,211 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-07-20 11:33:05,211 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-20 11:33:05,424 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:33:05,428 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-07-20 11:33:06,349 WARN  L193               SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 142
[2020-07-20 11:33:06,677 WARN  L193               SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 142
[2020-07-20 11:33:08,153 WARN  L193               SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 169 DAG size of output: 101
[2020-07-20 11:33:09,096 WARN  L193               SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 51
[2020-07-20 11:33:09,972 WARN  L193               SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 51
[2020-07-20 11:33:09,977 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initFINAL(line -1)  no Hoare annotation was computed.
[2020-07-20 11:33:09,977 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)|) (= ~a7~0 |old(~a7~0)|) (<= ~a21~0 |old(~a21~0)|))
[2020-07-20 11:33:09,977 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initEXIT(line -1)  no Hoare annotation was computed.
[2020-07-20 11:33:09,977 INFO  L268        CegarLoopResult]: For program point  L333(lines 333 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO  L268        CegarLoopResult]: For program point  L102(lines 102 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO  L268        CegarLoopResult]: For program point  L565-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO  L268        CegarLoopResult]: For program point  L532-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO  L268        CegarLoopResult]: For program point  L499-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO  L268        CegarLoopResult]: For program point  L466-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO  L268        CegarLoopResult]: For program point  L433-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO  L268        CegarLoopResult]: For program point  L400-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO  L268        CegarLoopResult]: For program point  L268(lines 268 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO  L268        CegarLoopResult]: For program point  L136(lines 136 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO  L268        CegarLoopResult]: For program point  L566(line 566)  no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO  L268        CegarLoopResult]: For program point  L533(line 533)  no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO  L268        CegarLoopResult]: For program point  L500(line 500)  no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO  L268        CegarLoopResult]: For program point  L467(line 467)  no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO  L268        CegarLoopResult]: For program point  L434(line 434)  no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO  L268        CegarLoopResult]: For program point  L401(line 401)  no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO  L268        CegarLoopResult]: For program point  L203(lines 203 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO  L268        CegarLoopResult]: For program point  L72(lines 72 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO  L268        CegarLoopResult]: For program point  L568-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO  L268        CegarLoopResult]: For program point  L535-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO  L268        CegarLoopResult]: For program point  L502-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO  L268        CegarLoopResult]: For program point  L469-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO  L268        CegarLoopResult]: For program point  L436-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO  L268        CegarLoopResult]: For program point  L403-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO  L268        CegarLoopResult]: For program point  L337(lines 337 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO  L268        CegarLoopResult]: For program point  L238(lines 238 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO  L268        CegarLoopResult]: For program point  L569(line 569)  no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO  L268        CegarLoopResult]: For program point  L536(line 536)  no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO  L268        CegarLoopResult]: For program point  L503(line 503)  no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO  L268        CegarLoopResult]: For program point  L470(line 470)  no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO  L268        CegarLoopResult]: For program point  L437(line 437)  no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO  L268        CegarLoopResult]: For program point  L404(line 404)  no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO  L268        CegarLoopResult]: For program point  L173(lines 173 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO  L268        CegarLoopResult]: For program point  L140(lines 140 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO  L268        CegarLoopResult]: For program point  L372(lines 372 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO  L268        CegarLoopResult]: For program point  calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 515)  no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO  L268        CegarLoopResult]: For program point  L306(lines 306 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO  L268        CegarLoopResult]: For program point  L273(lines 273 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO  L268        CegarLoopResult]: For program point  L108(lines 108 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO  L268        CegarLoopResult]: For program point  L571-1(lines 571 573)  no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO  L268        CegarLoopResult]: For program point  L538-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO  L268        CegarLoopResult]: For program point  L505-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO  L268        CegarLoopResult]: For program point  L472-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO  L268        CegarLoopResult]: For program point  L439-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,982 INFO  L268        CegarLoopResult]: For program point  L406-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,982 INFO  L268        CegarLoopResult]: For program point  L208(lines 208 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,982 INFO  L268        CegarLoopResult]: For program point  L43(lines 43 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,982 INFO  L268        CegarLoopResult]: For program point  L572(line 572)  no Hoare annotation was computed.
[2020-07-20 11:33:09,982 INFO  L268        CegarLoopResult]: For program point  L539(line 539)  no Hoare annotation was computed.
[2020-07-20 11:33:09,982 INFO  L268        CegarLoopResult]: For program point  L506(line 506)  no Hoare annotation was computed.
[2020-07-20 11:33:09,982 INFO  L268        CegarLoopResult]: For program point  L473(line 473)  no Hoare annotation was computed.
[2020-07-20 11:33:09,982 INFO  L268        CegarLoopResult]: For program point  L440(line 440)  no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO  L268        CegarLoopResult]: For program point  L407(line 407)  no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO  L268        CegarLoopResult]: For program point  L144(lines 144 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO  L268        CegarLoopResult]: For program point  L541-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO  L268        CegarLoopResult]: For program point  L508-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO  L268        CegarLoopResult]: For program point  L475-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO  L268        CegarLoopResult]: For program point  L442-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO  L268        CegarLoopResult]: For program point  L409-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO  L268        CegarLoopResult]: For program point  L178(lines 178 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO  L268        CegarLoopResult]: For program point  L542(line 542)  no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO  L268        CegarLoopResult]: For program point  L509(line 509)  no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO  L268        CegarLoopResult]: For program point  L476(line 476)  no Hoare annotation was computed.
[2020-07-20 11:33:09,984 INFO  L268        CegarLoopResult]: For program point  L443(line 443)  no Hoare annotation was computed.
[2020-07-20 11:33:09,984 INFO  L268        CegarLoopResult]: For program point  L410(line 410)  no Hoare annotation was computed.
[2020-07-20 11:33:09,984 INFO  L268        CegarLoopResult]: For program point  L377(lines 377 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,984 INFO  L268        CegarLoopResult]: For program point  L278(lines 278 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,984 INFO  L268        CegarLoopResult]: For program point  L245(lines 245 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,984 INFO  L268        CegarLoopResult]: For program point  L80(lines 80 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,984 INFO  L268        CegarLoopResult]: For program point  L345(lines 345 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,984 INFO  L268        CegarLoopResult]: For program point  L312(lines 312 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,985 INFO  L268        CegarLoopResult]: For program point  L114(lines 114 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,985 INFO  L268        CegarLoopResult]: For program point  L544-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,985 INFO  L268        CegarLoopResult]: For program point  L511-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,985 INFO  L268        CegarLoopResult]: For program point  L478-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,985 INFO  L268        CegarLoopResult]: For program point  L445-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,985 INFO  L268        CegarLoopResult]: For program point  L412-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,985 INFO  L268        CegarLoopResult]: For program point  L214(lines 214 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO  L268        CegarLoopResult]: For program point  L148(lines 148 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO  L268        CegarLoopResult]: For program point  L49(lines 49 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO  L268        CegarLoopResult]: For program point  L545(line 545)  no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO  L268        CegarLoopResult]: For program point  L512(line 512)  no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO  L268        CegarLoopResult]: For program point  L479(line 479)  no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO  L268        CegarLoopResult]: For program point  L446(line 446)  no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO  L268        CegarLoopResult]: For program point  L413(line 413)  no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO  L268        CegarLoopResult]: For program point  L84(lines 84 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO  L268        CegarLoopResult]: For program point  calculate_outputFINAL(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO  L268        CegarLoopResult]: For program point  calculate_outputEXIT(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO  L268        CegarLoopResult]: For program point  L547-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO  L268        CegarLoopResult]: For program point  L514-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO  L268        CegarLoopResult]: For program point  L481-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO  L268        CegarLoopResult]: For program point  L448-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO  L268        CegarLoopResult]: For program point  L382(lines 382 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO  L268        CegarLoopResult]: For program point  L415-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO  L268        CegarLoopResult]: For program point  L316(lines 316 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO  L268        CegarLoopResult]: For program point  L250(lines 250 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO  L268        CegarLoopResult]: For program point  L548(line 548)  no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO  L268        CegarLoopResult]: For program point  L515(line 515)  no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO  L268        CegarLoopResult]: For program point  L482(line 482)  no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO  L268        CegarLoopResult]: For program point  L449(line 449)  no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO  L268        CegarLoopResult]: For program point  L416(line 416)  no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO  L268        CegarLoopResult]: For program point  L218(lines 218 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO  L268        CegarLoopResult]: For program point  L152(lines 152 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO  L268        CegarLoopResult]: For program point  L119(lines 119 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO  L268        CegarLoopResult]: For program point  L318(lines 318 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO  L268        CegarLoopResult]: For program point  L186(lines 186 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO  L268        CegarLoopResult]: For program point  L54(lines 54 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO  L268        CegarLoopResult]: For program point  L550-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO  L268        CegarLoopResult]: For program point  L517-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO  L268        CegarLoopResult]: For program point  L484-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO  L268        CegarLoopResult]: For program point  L451-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO  L268        CegarLoopResult]: For program point  L418-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO  L268        CegarLoopResult]: For program point  L286(lines 286 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO  L268        CegarLoopResult]: For program point  L551(line 551)  no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO  L268        CegarLoopResult]: For program point  L518(line 518)  no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO  L268        CegarLoopResult]: For program point  L485(line 485)  no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO  L268        CegarLoopResult]: For program point  L452(line 452)  no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO  L268        CegarLoopResult]: For program point  L419(line 419)  no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO  L268        CegarLoopResult]: For program point  L353(lines 353 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO  L268        CegarLoopResult]: For program point  L189(lines 189 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO  L268        CegarLoopResult]: For program point  L553-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO  L268        CegarLoopResult]: For program point  L520-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO  L268        CegarLoopResult]: For program point  L487-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,992 INFO  L268        CegarLoopResult]: For program point  L454-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,992 INFO  L268        CegarLoopResult]: For program point  L421-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,992 INFO  L268        CegarLoopResult]: For program point  L355(lines 355 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,993 INFO  L268        CegarLoopResult]: For program point  L256(lines 256 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,993 INFO  L268        CegarLoopResult]: For program point  L223(lines 223 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,994 INFO  L268        CegarLoopResult]: For program point  L124(lines 124 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,995 INFO  L268        CegarLoopResult]: For program point  L554(line 554)  no Hoare annotation was computed.
[2020-07-20 11:33:09,995 INFO  L268        CegarLoopResult]: For program point  L521(line 521)  no Hoare annotation was computed.
[2020-07-20 11:33:09,995 INFO  L268        CegarLoopResult]: For program point  L488(line 488)  no Hoare annotation was computed.
[2020-07-20 11:33:09,995 INFO  L268        CegarLoopResult]: For program point  L455(line 455)  no Hoare annotation was computed.
[2020-07-20 11:33:09,995 INFO  L268        CegarLoopResult]: For program point  L422(line 422)  no Hoare annotation was computed.
[2020-07-20 11:33:09,995 INFO  L268        CegarLoopResult]: For program point  L92(lines 92 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,996 INFO  L264        CegarLoopResult]: At program point  calculate_outputENTRY(lines 30 575)  the Hoare annotation is:  (let ((.cse1 (not (<= |old(~a8~0)| 13))) (.cse17 (not (<= |old(~a16~0)| 5))) (.cse20 (<= ~a16~0 5)) (.cse4 (<= ~a8~0 |old(~a8~0)|)) (.cse5 (<= ~a16~0 |old(~a16~0)|))) (let ((.cse16 (not (<= |old(~a21~0)| 0))) (.cse15 (<= 15 ~a8~0)) (.cse13 (<= 5 ~a16~0)) (.cse14 (not (<= 15 |old(~a8~0)|))) (.cse21 (= ~a7~0 |old(~a7~0)|)) (.cse12 (<= 14 ~a8~0)) (.cse8 (= 1 ~a17~0)) (.cse11 (not (<= 5 |old(~a16~0)|))) (.cse9 (not (<= 14 |old(~a8~0)|))) (.cse3 (not (<= |old(~a16~0)| 4))) (.cse19 (not (<= |old(~a7~0)| 0))) (.cse2 (not (= 1 |old(~a17~0)|))) (.cse18 (or (and .cse4 .cse5 .cse20 (< ~a8~0 15)) (and .cse4 .cse5 (<= ~a8~0 13)))) (.cse6 (= 1 ~a7~0)) (.cse22 (<= 6 ~a16~0)) (.cse7 (<= ~a21~0 |old(~a21~0)|)) (.cse0 (not (= 1 |old(~a7~0)|))) (.cse10 (and .cse1 (or .cse17 (not (< |old(~a8~0)| 15))))) (.cse23 (not (<= 6 |old(~a16~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 .cse6 .cse7 .cse8)) (or .cse9 .cse10 .cse11 (and .cse12 .cse13)) (or .cse14 (and .cse4 .cse5 .cse6 .cse7 .cse15) .cse0 .cse3) (or .cse16 .cse0 .cse17 .cse8 .cse1 .cse2) (or .cse16 .cse0 (and .cse18 .cse6 .cse7) .cse3 .cse10) (or .cse14 .cse19 .cse15) (or .cse14 .cse19 .cse8 .cse17 .cse2) (or .cse16 .cse0 (and .cse18 .cse6 .cse7 .cse13) .cse10 .cse11) (or .cse14 .cse19 .cse13 .cse11) (or .cse14 .cse0 .cse17 .cse11 (and .cse4 .cse6 .cse7 .cse20 .cse15 .cse13)) (or .cse14 .cse19 (and .cse4 .cse5 .cse21 .cse22 .cse7) .cse23) (or (and .cse21 (or (and .cse18 .cse7 .cse12) (and (let ((.cse24 (<= ~a7~0 0))) (or (and .cse4 .cse5 .cse24 .cse8) (and .cse4 .cse5 .cse24 .cse20))) .cse7))) (and (or .cse9 .cse10 .cse11) (or .cse19 .cse17) (or .cse9 .cse3 .cse10) (or .cse19 .cse1 .cse2))) (or (and .cse18 .cse6 .cse22 .cse7) .cse0 .cse10 .cse23))))
[2020-07-20 11:33:09,996 INFO  L268        CegarLoopResult]: For program point  L324(lines 324 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,996 INFO  L268        CegarLoopResult]: For program point  L556-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,996 INFO  L268        CegarLoopResult]: For program point  L523-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,996 INFO  L268        CegarLoopResult]: For program point  L490-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,996 INFO  L268        CegarLoopResult]: For program point  L457-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO  L268        CegarLoopResult]: For program point  L391(lines 391 393)  no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO  L268        CegarLoopResult]: For program point  L424-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO  L268        CegarLoopResult]: For program point  L391-2(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO  L268        CegarLoopResult]: For program point  L292(lines 292 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO  L268        CegarLoopResult]: For program point  L160(lines 160 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO  L268        CegarLoopResult]: For program point  L557(line 557)  no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO  L268        CegarLoopResult]: For program point  L524(line 524)  no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO  L268        CegarLoopResult]: For program point  L491(line 491)  no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO  L268        CegarLoopResult]: For program point  L458(line 458)  no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO  L268        CegarLoopResult]: For program point  L425(line 425)  no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO  L268        CegarLoopResult]: For program point  L392(line 392)  no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO  L268        CegarLoopResult]: For program point  L194(lines 194 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO  L268        CegarLoopResult]: For program point  L62(lines 62 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO  L268        CegarLoopResult]: For program point  L261(lines 261 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO  L268        CegarLoopResult]: For program point  L129(lines 129 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO  L268        CegarLoopResult]: For program point  L559-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO  L268        CegarLoopResult]: For program point  L526-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO  L268        CegarLoopResult]: For program point  L493-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO  L268        CegarLoopResult]: For program point  L460-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO  L268        CegarLoopResult]: For program point  L427-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO  L268        CegarLoopResult]: For program point  L361(lines 361 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO  L268        CegarLoopResult]: For program point  L394-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO  L268        CegarLoopResult]: For program point  L97(lines 97 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO  L268        CegarLoopResult]: For program point  L31(lines 31 390)  no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO  L268        CegarLoopResult]: For program point  L560(line 560)  no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO  L268        CegarLoopResult]: For program point  L527(line 527)  no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO  L268        CegarLoopResult]: For program point  L494(line 494)  no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO  L268        CegarLoopResult]: For program point  L461(line 461)  no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO  L268        CegarLoopResult]: For program point  L428(line 428)  no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO  L268        CegarLoopResult]: For program point  L395(line 395)  no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO  L268        CegarLoopResult]: For program point  L329(lines 329 390)  no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO  L268        CegarLoopResult]: For program point  L197(lines 197 390)  no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO  L268        CegarLoopResult]: For program point  L65(lines 65 390)  no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO  L268        CegarLoopResult]: For program point  L363(lines 363 390)  no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO  L268        CegarLoopResult]: For program point  L231(lines 231 390)  no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO  L268        CegarLoopResult]: For program point  L165(lines 165 390)  no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO  L268        CegarLoopResult]: For program point  L562-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO  L268        CegarLoopResult]: For program point  L529-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO  L268        CegarLoopResult]: For program point  L496-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO  L268        CegarLoopResult]: For program point  L463-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO  L268        CegarLoopResult]: For program point  L430-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO  L268        CegarLoopResult]: For program point  L397-1(lines 30 575)  no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO  L268        CegarLoopResult]: For program point  L265(lines 265 390)  no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO  L268        CegarLoopResult]: For program point  L563(line 563)  no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO  L268        CegarLoopResult]: For program point  L530(line 530)  no Hoare annotation was computed.
[2020-07-20 11:33:10,002 INFO  L268        CegarLoopResult]: For program point  L497(line 497)  no Hoare annotation was computed.
[2020-07-20 11:33:10,002 INFO  L268        CegarLoopResult]: For program point  L464(line 464)  no Hoare annotation was computed.
[2020-07-20 11:33:10,002 INFO  L268        CegarLoopResult]: For program point  L431(line 431)  no Hoare annotation was computed.
[2020-07-20 11:33:10,002 INFO  L268        CegarLoopResult]: For program point  L398(line 398)  no Hoare annotation was computed.
[2020-07-20 11:33:10,002 INFO  L268        CegarLoopResult]: For program point  L365(lines 365 390)  no Hoare annotation was computed.
[2020-07-20 11:33:10,002 INFO  L268        CegarLoopResult]: For program point  L299(lines 299 390)  no Hoare annotation was computed.
[2020-07-20 11:33:10,002 INFO  L268        CegarLoopResult]: For program point  L35(lines 35 390)  no Hoare annotation was computed.
[2020-07-20 11:33:10,002 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startEXIT(line -1)  no Hoare annotation was computed.
[2020-07-20 11:33:10,003 INFO  L264        CegarLoopResult]: At program point  L-1(line -1)  the Hoare annotation is:  (and (<= ~a7~0 0) (= 1 ~a17~0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0))
[2020-07-20 11:33:10,003 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.startENTRY(line -1)  the Hoare annotation is:  true
[2020-07-20 11:33:10,003 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startFINAL(line -1)  no Hoare annotation was computed.
[2020-07-20 11:33:10,003 INFO  L264        CegarLoopResult]: At program point  mainENTRY(lines 577 594)  the Hoare annotation is:  (or (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a17~0)|)) (and (<= ~a8~0 |old(~a8~0)|) (= ~a7~0 |old(~a7~0)|) (<= ~a21~0 |old(~a21~0)|) (= 1 ~a17~0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0)) (not (<= 5 |old(~a16~0)|)))
[2020-07-20 11:33:10,003 INFO  L268        CegarLoopResult]: For program point  mainEXIT(lines 577 594)  no Hoare annotation was computed.
[2020-07-20 11:33:10,003 INFO  L264        CegarLoopResult]: At program point  L591(line 591)  the Hoare annotation is:  (let ((.cse3 (<= ~a8~0 13)) (.cse6 (<= ~a16~0 5))) (let ((.cse2 (= 1 ~a17~0)) (.cse0 (= 1 ~a7~0)) (.cse5 (<= 15 ~a8~0)) (.cse1 (or .cse3 (and .cse6 (< ~a8~0 15)))) (.cse4 (<= ~a7~0 0))) (or (and .cse0 (<= ~a21~0 0) .cse1) (and .cse0 .cse2 (<= ~a16~0 4)) (and .cse3 .cse4 .cse2) (and .cse4 .cse5) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (and .cse0 (<= 6 ~a16~0) .cse1) (and .cse0 .cse6 .cse5) (and (<= 14 ~a8~0) .cse1) (not (<= 15 |old(~a8~0)|)) (and .cse4 .cse6) (not (<= |old(~a16~0)| 5)))))
[2020-07-20 11:33:10,004 INFO  L268        CegarLoopResult]: For program point  L591-1(line 591)  no Hoare annotation was computed.
[2020-07-20 11:33:10,004 INFO  L268        CegarLoopResult]: For program point  L588(line 588)  no Hoare annotation was computed.
[2020-07-20 11:33:10,004 INFO  L264        CegarLoopResult]: At program point  L583-2(lines 583 593)  the Hoare annotation is:  (let ((.cse3 (<= ~a8~0 13)) (.cse6 (<= ~a16~0 5))) (let ((.cse2 (= 1 ~a17~0)) (.cse0 (= 1 ~a7~0)) (.cse5 (<= 15 ~a8~0)) (.cse1 (or .cse3 (and .cse6 (< ~a8~0 15)))) (.cse4 (<= ~a7~0 0))) (or (and .cse0 (<= ~a21~0 0) .cse1) (and .cse0 .cse2 (<= ~a16~0 4)) (and .cse3 .cse4 .cse2) (and .cse4 .cse5) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (and .cse0 (<= 6 ~a16~0) .cse1) (and .cse0 .cse6 .cse5) (and (<= 14 ~a8~0) .cse1) (not (<= 15 |old(~a8~0)|)) (and .cse4 .cse6) (not (<= |old(~a16~0)| 5)))))
[2020-07-20 11:33:10,004 INFO  L268        CegarLoopResult]: For program point  L583-3(lines 577 594)  no Hoare annotation was computed.
[2020-07-20 11:33:10,030 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:33:10 BoogieIcfgContainer
[2020-07-20 11:33:10,030 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-20 11:33:10,032 INFO  L168              Benchmark]: Toolchain (without parser) took 24142.82 ms. Allocated memory was 139.5 MB in the beginning and 569.4 MB in the end (delta: 429.9 MB). Free memory was 103.1 MB in the beginning and 190.5 MB in the end (delta: -87.4 MB). Peak memory consumption was 461.7 MB. Max. memory is 7.1 GB.
[2020-07-20 11:33:10,033 INFO  L168              Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB.
[2020-07-20 11:33:10,033 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 737.58 ms. Allocated memory was 139.5 MB in the beginning and 206.6 MB in the end (delta: 67.1 MB). Free memory was 102.6 MB in the beginning and 172.9 MB in the end (delta: -70.3 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB.
[2020-07-20 11:33:10,034 INFO  L168              Benchmark]: Boogie Preprocessor took 128.03 ms. Allocated memory is still 206.6 MB. Free memory was 172.9 MB in the beginning and 168.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB.
[2020-07-20 11:33:10,035 INFO  L168              Benchmark]: RCFGBuilder took 1315.52 ms. Allocated memory was 206.6 MB in the beginning and 238.6 MB in the end (delta: 32.0 MB). Free memory was 168.1 MB in the beginning and 179.1 MB in the end (delta: -11.0 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB.
[2020-07-20 11:33:10,036 INFO  L168              Benchmark]: TraceAbstraction took 21955.48 ms. Allocated memory was 238.6 MB in the beginning and 569.4 MB in the end (delta: 330.8 MB). Free memory was 179.1 MB in the beginning and 190.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 438.7 MB. Max. memory is 7.1 GB.
[2020-07-20 11:33:10,039 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 737.58 ms. Allocated memory was 139.5 MB in the beginning and 206.6 MB in the end (delta: 67.1 MB). Free memory was 102.6 MB in the beginning and 172.9 MB in the end (delta: -70.3 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 128.03 ms. Allocated memory is still 206.6 MB. Free memory was 172.9 MB in the beginning and 168.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1315.52 ms. Allocated memory was 206.6 MB in the beginning and 238.6 MB in the end (delta: 32.0 MB). Free memory was 168.1 MB in the beginning and 179.1 MB in the end (delta: -11.0 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 21955.48 ms. Allocated memory was 238.6 MB in the beginning and 569.4 MB in the end (delta: 330.8 MB). Free memory was 179.1 MB in the beginning and 190.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 438.7 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 515]: 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: (((((((((((((1 == a7 && a21 <= 0) && (a8 <= 13 || (a16 <= 5 && a8 < 15))) || ((1 == a7 && 1 == a17) && a16 <= 4)) || ((a8 <= 13 && a7 <= 0) && 1 == a17)) || (a7 <= 0 && 15 <= a8)) || !(\old(a7) <= 0)) || !(1 == \old(a17))) || !(5 <= \old(a16))) || ((1 == a7 && 6 <= a16) && (a8 <= 13 || (a16 <= 5 && a8 < 15)))) || ((1 == a7 && a16 <= 5) && 15 <= a8)) || (14 <= a8 && (a8 <= 13 || (a16 <= 5 && a8 < 15)))) || !(15 <= \old(a8))) || (a7 <= 0 && a16 <= 5)) || !(\old(a16) <= 5)
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.2s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 578 SDtfs, 3016 SDslu, 302 SDs, 0 SdLazy, 7558 SolverSat, 1248 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2373 GetRequests, 2329 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4851occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 2722 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 215 PreInvPairs, 305 NumberOfFragments, 848 HoareAnnotationTreeSize, 215 FomulaSimplifications, 68034 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 33503 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1689 NumberOfCodeBlocks, 1689 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2348 ConstructedInterpolants, 0 QuantifiedInterpolants, 844662 SizeOfPredicates, 17 NumberOfNonLiveVariables, 4687 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 677/716 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...